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Journal Article

Scalable Modeling of Carbon Tetrachloride Migration at the Hanford Site Using the STOMP Simulator All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.

M. D. White, M. Oostrom, M. L. Rockhold, M. Rosing
Published: 01 May 2008
Vadose Zone Journal (2008) 7 (2): 654–666.
DOI: https://doi.org/10.2136/vzj2007.0070
... in the simulation results for subsurface distribution and remediation of CCl 4 , execution on multiple processors was required. We have developed a scalable implementation of a multifluid subsurface flow and transport simulator, STOMP, with capabilities for volatile organic compounds. Developing scientific software...
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View PDF for article title, Scalable Modeling of Carbon Tetrachloride Migration at the Hanford Site Using the <span class="search-highlight">STOMP</span> <span class="search-highlight">Simulator</span> All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.
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Image
Computed CCl4 saturation distribution with STOMP simulator for end of (a) redistribution stage, and (b) water injection stage.

Computed CCl 4 saturation distribution with STOMP simulator for end of (a)...

Published: 01 February 2003
Fig. 11. Computed CCl 4 saturation distribution with STOMP simulator for end of (a) redistribution stage, and (b) water injection stage.
Image
Cross-section of the cylindrical domain used for STOMP simulations. Solid (gray) nodes mark the injection–extraction locations of the simulated gas push–pull tests. In simulations with a cylinder, the r axis was reduced to 150 cm, i.e., the hatched area was eliminated from the computations.

Cross-section of the cylindrical domain used for STOMP simulations. Solid (...

Published: 01 November 2010
Fig. 2. Cross-section of the cylindrical domain used for STOMP simulations. Solid (gray) nodes mark the injection–extraction locations of the simulated gas push–pull tests. In simulations with a cylinder, the r axis was reduced to 150 cm, i.e., the hatched area was eliminated from
Journal Article

Impact of Water Table Fluctuations on the Concentration of Borehole Gas from NAPL Sources in the Vadose Zone

Won-Tak Joun, Seong-Sun Lee, Youn-Eun Koh, Kang-Kun Lee
Published: 01 April 2016
Vadose Zone Journal (2016) 15 (4): vzj2015.09.0124.
DOI: https://doi.org/10.2136/vzj2015.09.0124
... concentrations. In contrast, dissolved TCE sources produced relatively weak gas concentrations characterized by a peak, quickly followed by decreasing gas concentration curves. The Subsurface Transport Over Multiple Phases (STOMP) simulator was used to simulate breakthrough curves under fluctuating water table...
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View PDF for article title, Impact of Water Table Fluctuations on the Concentration of Borehole Gas from NAPL Sources in the Vadose Zone
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Journal Article

Desiccation of Unsaturated Porous Media: Intermediate-Scale Experiments and Numerical Simulation All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.

M. Oostrom, T. W. Wietsma, J. H. Dane, M. J. Truex, A. L. Ward
Published: 01 August 2009
Vadose Zone Journal (2009) 8 (3): 643–650.
DOI: https://doi.org/10.2136/vzj2008.0182
... subsequently simulated with the multifluid flow simulator STOMP, using independently obtained hydraulic and thermal porous medium properties. In all experiments, the injection of dry air proved to be an effective means for removing essentially all moisture from the test media. Observed evaporative cooling...
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View PDF for article title, Desiccation of Unsaturated Porous Media: Intermediate-Scale Experiments and Numerical <span class="search-highlight">Simulation</span> All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.
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Journal Article

Sensor and Numerical Simulator Evaluation for Porous Medium Desiccation and Rewetting at the Intermediate Laboratory Scale

M. Oostrom, T.W. Wietsma, C.E. Strickland, V.L. Freedman, M.J. Truex
Published: 01 February 2012
Vadose Zone Journal (2012) 11 (1): vzj2011.0089.
DOI: https://doi.org/10.2136/vzj2011.0089
... was simulated with the multifluid flow simulator STOMP, using independently obtained hydraulic and thermal porous medium properties. All instrument types used for this experiment were able to indicate when the desiccation front passed a certain location. In most cases the changes were sharp, indicating rapid...
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View PDF for article title, Sensor and Numerical <span class="search-highlight">Simulator</span> Evaluation for Porous Medium Desiccation and Rewetting at the Intermediate Laboratory Scale
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Journal Article

Carbon Tetrachloride Flow and Transport in the Subsurface of the 216-Z-9 Trench at the Hanford Site All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.

M. Oostrom, M. L. Rockhold, P. D. Thorne, M. J. Truex, G. V. Last, V. J. Rohay
Published: 01 November 2007
Vadose Zone Journal (2007) 6 (4): 971–984.
DOI: https://doi.org/10.2136/vzj2006.0166
... to enhance the current conceptual model of CT distribution beneath the major disposal site (216-Z-9). The simulations, using the STOMP code, focused on migration of dense nonaqueous phase liquid (DNAPL) consisting of CT and codisposed organics under scenarios with differing sediment properties, sediment...
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View PDF for article title, Carbon Tetrachloride Flow and Transport in the Subsurface of the 216-Z-9 Trench at the Hanford Site All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.
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Journal Article

Effects of Porous Medium Heterogeneity on Vadose Zone Desiccation: Intermediate-Scale Laboratory Experiments and Simulations

M. Oostrom, V.L. Freedman, T.W. Wietsma, J.H. Dane, M.J. Truex
Published: 01 November 2012
Vadose Zone Journal (2012) 11 (4): vzj2011.0168.
DOI: https://doi.org/10.2136/vzj2011.0168
.... The insulated flow cell was equipped with 20 humidity and temperature sensors while a dual-energy γ system was used to determine water saturations at various times. The multiphase code STOMP was used to simulate the desiccation process. For the layered systems, results show that injected dry gas flowed...
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View PDF for article title, Effects of Porous Medium Heterogeneity on Vadose Zone Desiccation: Intermediate-Scale Laboratory Experiments and <span class="search-highlight">Simulations</span>
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Journal Article

Geological sequestration of carbon dioxide in the Cambrian Mount Simon Sandstone: Regional storage capacity, site characterization, and large-scale injection feasibility, Michigan Basin

David A. Barnes, Diana H. Bacon, Stephen R. Kelley
Published: 01 September 2009
Environmental Geosciences (2009) 16 (3): 163–183.
DOI: https://doi.org/10.1306/eg.05080909009
... -salt (STOMP-WCS) simulator code to assess the potential for geologic sequestration into the Mount Simon saline reservoir in the area of Holland, Ottawa County, Michigan. At this locality, the reservoir is more than 260 m (850 ft) thick and has a minimum of 30 m (100 ft) of net porosity. The simulation...
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View PDF for article title, Geological sequestration of carbon dioxide in the Cambrian Mount Simon Sandstone: Regional storage capacity, site characterization, and large-scale injection feasibility, Michigan Basin
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Journal Article

Estimating Soil Hydraulic Parameters of a Field Drainage Experiment Using Inverse Techniques

Z. Fred Zhang, Andy L. Ward, Glendon W. Gee
Published: 01 May 2003
Vadose Zone Journal (2003) 2 (2): 201–211.
DOI: https://doi.org/10.2113/2.2.201
.... The inverse modeling was performed using the combination of the inverse model UCODE ( Poeter and Hill, 1998 , 1999 ) and the STOMP flow simulator ( White et al., 1995 ; White and Oostrom, 2000 ). Detailed description of the two programs is given below. Parameter stability was examined through sensitivity...
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View PDF for article title, Estimating Soil Hydraulic Parameters of a Field Drainage Experiment Using Inverse Techniques
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Journal Article

Parametric analysis of CO 2 geologic sequestration in closed volumes

Srikanta Mishra, Yagna Deepika Oruganti, Joel Sminchak
Published: 01 June 2014
Environmental Geosciences (2014) 21 (2): 59–74.
DOI: https://doi.org/10.1306/eg.03101413009
... a parametric analysis of the problem using characteristics typical of the Arches Province in the United States Midwest where Paleozoic rocks form broad arch and platform structures. Two-dimensional radial-cylindrical models developed with the numerical simulator STOMP (Subsurface Transport Over Multiple Phases...
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Journal Article

Transport of Carbon-14 in a Large Unsaturated Soil Column

Mitchell A. Plummer, Larry C. Hull, Don T. Fox
Published: 01 February 2004
Vadose Zone Journal (2004) 3 (1): 109–121.
DOI: https://doi.org/10.2113/3.1.109
... a simple gas-diffusion model and a multiphase flow and transport simulator (STOMP). Results indicate that 14 C transport in this system is well described by a reactive gas diffusion model, with a pH-dependent retardation factor. Fitting transport simulations to the early-time transport data yielded K d...
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Journal Article

Effective Hydraulic Properties Determined from Transient Unsaturated Flow in Anisotropic Soils All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.

Andy L. Ward, Z. Fred Zhang
Published: 01 November 2007
Vadose Zone Journal (2007) 6 (4): 913–924.
DOI: https://doi.org/10.2136/vzj2006.0174
... connectivity–tortuosity tensor ( L i ) were inversely estimated using the Subsurface Transport Over Multiple Phases (STOMP) numerical simulator coupled with the parameter estimation code, UCODE. Results show that six of eight parameters required for a modified van Genuchten–Mualem model could be inversely...
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View PDF for article title, Effective Hydraulic Properties Determined from Transient Unsaturated Flow in Anisotropic Soils All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.
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Image
Measured 14C gas-phase breakthrough curves (symbols) and simulated responses (lines) at each sampling level. Simulated curves were calculated using the multiphase flow and transport model STOMP, using the nonuniform, pH-based, aqueous/gas partitioning ratio profile shown in Fig. 8. Average water content for the flow simulation was 28%; Kd ≈ 0.5 mg L−1.

Measured 14 C gas-phase breakthrough curves (symbols) and simulated respon...

Published: 01 February 2004
Fig. 9. Measured 14 C gas-phase breakthrough curves (symbols) and simulated responses (lines) at each sampling level. Simulated curves were calculated using the multiphase flow and transport model STOMP, using the nonuniform, pH-based, aqueous/gas partitioning ratio profile shown in Fig. 8
Image
Measured 14C aqueous-phase breakthrough curves (symbols) and simulated responses (lines) at each sampling level. Simulated curves were calculated using the multiphase flow and transport model STOMP, using the nonuniform, pH-based, aqueous/gas partitioning ratio profile shown in Fig. 8. Average water content for the flow simulation was about 28%; Kd ≈ 0.5 mg L−1.

Measured 14 C aqueous-phase breakthrough curves (symbols) and simulated re...

Published: 01 February 2004
Fig. 10. Measured 14 C aqueous-phase breakthrough curves (symbols) and simulated responses (lines) at each sampling level. Simulated curves were calculated using the multiphase flow and transport model STOMP, using the nonuniform, pH-based, aqueous/gas partitioning ratio profile shown in Fig
Journal Article

Vadose Zone Modeling: Introduction and Importance All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.

Jirka Šimůnek, Scott A. Bradford
Published: 01 May 2008
Vadose Zone Journal (2008) 7 (2): 581–586.
DOI: https://doi.org/10.2136/vzj2008.0012
... processor to solve this problem with STOMP was not practical because of the complexity of the problem and the long simulation times. To overcome these limitations, White et al. (2008) present the developed and application of a scalable version of STOMP for faster execution on parallel computers...
View PDF for article title, Vadose Zone Modeling: Introduction and Importance All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.
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Journal Article

A Comparison of Models Describing Residual NAPL Formation in the Vadose Zone

M. Oostrom, M. D. White, R. J. Lenhard, P. J. Van Geel, T. W. Wietsma
Published: 01 February 2005
Vadose Zone Journal (2005) 4 (1): 163–174.
DOI: https://doi.org/10.2113/4.1.163
... Science Society of America 2005 Three new theoretical models for computing residual NAPL saturation in the vadose zone were tested using static pressure cell data. Two of the models were incorporated into the STOMP multiphase flow simulator and were successfully tested against transient flow column...
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View PDF for article title, A Comparison of Models Describing Residual NAPL Formation in the Vadose Zone
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Journal Article

In Situ Quantification of Atmospheric Methane Oxidation in Near-Surface Soils All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.

Philipp A. Nauer, Martin H. Schroth
Published: 01 November 2010
Vadose Zone Journal (2010) 9 (4): 1052–1062.
DOI: https://doi.org/10.2136/vzj2009.0192
...Fig. 2. Cross-section of the cylindrical domain used for STOMP simulations. Solid (gray) nodes mark the injection–extraction locations of the simulated gas push–pull tests. In simulations with a cylinder, the r axis was reduced to 150 cm, i.e., the hatched area was eliminated from...
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View PDF for article title, In Situ Quantification of Atmospheric Methane Oxidation in Near-Surface Soils All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.
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Journal Article

Pore-Water Extraction from Unsaturated Porous Media: Intermediate-Scale Laboratory Experiments and Simulations

M. Oostrom, M.J. Truex, T.W. Wietsma, G.D. Tartakovsky
Published: 01 August 2014
Vadose Zone Journal (2014) 13 (8): vzj2014.04.0044.
DOI: https://doi.org/10.2136/vzj2014.04.0044
... experimental data to test and verify the Subsurface Transport Over Multiple Phases (STOMP) ( White and Oostrom, 2006 ) multiphase code for this application; the goal was to design the field tests with this simulator. To simulate the process of pore-water extraction as a result of a suction imposed on the air...
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Journal Article

Carbon Tetrachloride Flow Behavior in Unsaturated Hanford Caliche Material: An Investigation of Residual Nonaqueous Phase Liquids

M. Oostrom, R. J. Lenhard
Published: 01 February 2003
Vadose Zone Journal (2003) 2 (1): 25–33.
DOI: https://doi.org/10.2113/2.1.25
...Fig. 11. Computed CCl 4 saturation distribution with STOMP simulator for end of (a) redistribution stage, and (b) water injection stage. ...
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View PDF for article title, Carbon Tetrachloride Flow Behavior in Unsaturated Hanford Caliche Material: An Investigation of Residual Nonaqueous Phase Liquids
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