K-E modeling using modified nodal integral method

Suneet Singh, Rizwanuddin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The simulation of turbulent flows is an ongoing challenge. This is especially true for the flows in nuclear reactors. In order to save computational time and resource, accurate numerical schemes are required for such simulations. The encouraging results from the laminar flow simulations using Mod(fied Nodal Integral Method (MNIM), serves as a motivation to use the method for turbulent flow simulations. The k-c model in this work has been implemented using the MNIM formulation. Two models, one for low Reynolds number and one for high Reynolds number; are implemented. The application of the model to relatively simple problems shows that results are good and similar to what one would expect from the k- c model implementation with any other numerical scheme. The results are compared with the DNS data from various sources in the literature. The difference between the DNS data and current implementation arises mainly from the assumption made in the k- c model rather than the choice of the numerical scheme in the present work. It is seen that very coarse grids can be used away from the walls for the present simulation. This is especially true for low Reynolds number model. However; away from the wall very few cells are needed. Hence, MIVIM formulation for the k-e model promises to reduce the over all computational cost despite the fact that there will be relatively little gain in regions near the walls.

Original languageEnglish (US)
Title of host publicationAmerican Nuclear Society - International Conference on Advances in Nuclear Power Plants, ICAPP 2008
Pages1832-1842
Number of pages11
Volume3
StatePublished - 2008
EventInternational Conference on Advances in Nuclear Power Plants, ICAPP 2008 - Anaheim, CA, United States

Other

OtherInternational Conference on Advances in Nuclear Power Plants, ICAPP 2008
CountryUnited States
CityAnaheim, CA
Period6/8/086/12/08

Fingerprint

Reynolds number
Flow simulation
Turbulent flow
Nuclear reactors
Laminar flow
Costs

ASJC Scopus subject areas

  • Fuel Technology
  • Nuclear Energy and Engineering

Cite this

Singh, S., & Rizwanuddin (2008). K-E modeling using modified nodal integral method. In American Nuclear Society - International Conference on Advances in Nuclear Power Plants, ICAPP 2008 (Vol. 3, pp. 1832-1842)

K-E modeling using modified nodal integral method. / Singh, Suneet; Rizwanuddin.

American Nuclear Society - International Conference on Advances in Nuclear Power Plants, ICAPP 2008. Vol. 3 2008. p. 1832-1842.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Singh, S & Rizwanuddin 2008, K-E modeling using modified nodal integral method. in American Nuclear Society - International Conference on Advances in Nuclear Power Plants, ICAPP 2008. vol. 3, pp. 1832-1842, International Conference on Advances in Nuclear Power Plants, ICAPP 2008, Anaheim, CA, United States, 8-12 June.
Singh S, Rizwanuddin. K-E modeling using modified nodal integral method. In American Nuclear Society - International Conference on Advances in Nuclear Power Plants, ICAPP 2008. Vol. 3. 2008. p. 1832-1842.

Singh, Suneet; Rizwanuddin / K-E modeling using modified nodal integral method.

American Nuclear Society - International Conference on Advances in Nuclear Power Plants, ICAPP 2008. Vol. 3 2008. p. 1832-1842.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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