A lowre RSTM model for computations of heat transfer and fluid flow for impingement and convective cooling
(2004) 2004 ASME Turbo Expo In Proceedings of the ASME Turbo Expo 2004 3. p.429438 Abstract
 A new Reynolds stress transport model (RSTM) aimed for engineering applications is proposed with consideration of nearwall turbulence. This model employs the SSG pressure strain term, the ω equation, and the SST model for the shear stresses at the nearwall region (say y<sup>+</sup> less than or equal 30). The models are selected based on the following merits: The SSG RSTM model performs well in the fully turbulent region and does not need the wall normal vectors; the ω equation can be integrated down to the wall without damping functions; The SST model is a proper twoequation model that performs well for flows with adverse pressure gradient, while most twoequation models can have a good prediction of the shear stresses. A... (More)
 A new Reynolds stress transport model (RSTM) aimed for engineering applications is proposed with consideration of nearwall turbulence. This model employs the SSG pressure strain term, the ω equation, and the SST model for the shear stresses at the nearwall region (say y<sup>+</sup> less than or equal 30). The models are selected based on the following merits: The SSG RSTM model performs well in the fully turbulent region and does not need the wall normal vectors; the ω equation can be integrated down to the wall without damping functions; The SST model is a proper twoequation model that performs well for flows with adverse pressure gradient, while most twoequation models can have a good prediction of the shear stresses. A function is selected for the blending of the RSTM and SST. Three cases are presented to show the performance of the present model: (1) fully developed channel flow with Reτ = 395, (2) backwardfacing step with an expansion ratio of 1.2 and Re = 5,200 base on the step height, (3) circular impingement with the nozzletowall distance H = 4D and Re = 20,000. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/record/614494
 author
 Jia, Rongguang ^{LU} and Sundén, Bengt ^{LU}
 organization
 publishing date
 2004
 type
 Chapter in Book/Report/Conference proceeding
 publication status
 published
 subject
 keywords
 Stagnation region, Reynold stress, Impingment, Convective cooling, Cooling ducts
 in
 Proceedings of the ASME Turbo Expo 2004
 volume
 3
 pages
 429  438
 publisher
 American Society Of Mechanical Engineers (ASME)
 conference name
 2004 ASME Turbo Expo
 external identifiers

 Scopus:10244264782
 language
 English
 LU publication?
 yes
 id
 feef13ee038e4406b4c70af41ed57577 (old id 614494)
 date added to LUP
 20071126 19:56:50
 date last changed
 20161013 04:45:10
@misc{feef13ee038e4406b4c70af41ed57577, abstract = {A new Reynolds stress transport model (RSTM) aimed for engineering applications is proposed with consideration of nearwall turbulence. This model employs the SSG pressure strain term, the ω equation, and the SST model for the shear stresses at the nearwall region (say y<sup>+</sup> less than or equal 30). The models are selected based on the following merits: The SSG RSTM model performs well in the fully turbulent region and does not need the wall normal vectors; the ω equation can be integrated down to the wall without damping functions; The SST model is a proper twoequation model that performs well for flows with adverse pressure gradient, while most twoequation models can have a good prediction of the shear stresses. A function is selected for the blending of the RSTM and SST. Three cases are presented to show the performance of the present model: (1) fully developed channel flow with Reτ = 395, (2) backwardfacing step with an expansion ratio of 1.2 and Re = 5,200 base on the step height, (3) circular impingement with the nozzletowall distance H = 4D and Re = 20,000.}, author = {Jia, Rongguang and Sundén, Bengt}, keyword = {Stagnation region,Reynold stress,Impingment,Convective cooling,Cooling ducts}, language = {eng}, pages = {429438}, publisher = {ARRAY(0x57798d8)}, series = {Proceedings of the ASME Turbo Expo 2004}, title = {A lowre RSTM model for computations of heat transfer and fluid flow for impingement and convective cooling}, volume = {3}, year = {2004}, }