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868 (0,083s)

Výsledek výzkumu

Hybrid RANS/LES modelling of secondary flow in axial turbine stage

The contribution deals with application of hybrid RANS/LES model based on two-equation k– model in RANS mode and transport equation for the sub-grid scale turbulent energy in LES mode. Hybrid RANS/LES model is applied for ...

BK - Mechanika tekutin

  • 2016
  • D
  • Odkaz
Výsledek výzkumu

Comparison of Various RANS and RANS-LES Hybrid Models on a Transonic Diffuser Problem

The purpose of this article is to compare various CFD approaches for modeling turbulent flows, speci cally the two-equation Reynolds-averaged Navier{Stokes (RANS) Menter's Shear Stress Transport turbulence model (SST) and its various hybrids...

Applied mathematics

  • 2023
  • D
  • Odkaz
Výsledek výzkumu

Comparison of linear and nonlinear subgrid scale model for hybrid RANS/LES modelling

The contribution deals with application of the hybrid RANS/LES model for calculation of flow around the circular cylinder. Used hybrid RANS/LES model is based on transport equation for the kinetic energy which is shared in both ...

BK - Mechanika tekutin

  • 2016
  • D
  • Odkaz
Výsledek výzkumu

Hybrid LES/RANS Simulations of Compressible Flow in a Linear Cascade of Flat Blade Profiles

in a blade cascade consisting of flat profiles using a hybrid LES/RANS approach including and zero incidence. The results of the LES/RANS simulations (pressure and Mach number distributions) were compared to a baseline RANS

Applied mechanics

  • 2024
  • Jimp
  • Odkaz
Výsledek výzkumu

PREDICTION OF THE OVERLOADED AXIAL TURBINE STAGE EFFICIENCY USING THE HYBRID RANS/LES TURBULENCE MODEL

The paper deals with application of hybrid RANS/LES turbulence model stage. Used hybrid RANS/LES model is based on transport equation for the kinetic energy which is shared in both RANS and LES modes. The model is implement...

Applied mechanics

  • 2020
  • D
  • Odkaz
Výsledek výzkumu

Application of LES Turbulence Model to Motored 4-stroke Internal Combustion Engine

It is a theoretical study to compare LES turbulence model (Smagorinsky) with RANS approach for the case of motored 4-stroke internal combustion engine. The LES results are based on statistical evaluation of 45 consecutive cycles. Such data a...

BJ - Termodynamika

  • 2010
  • D
Výsledek výzkumu

MRSTsFoam

Multi-regional solver for solution reacting flow problems based on RANS equations.

BK - Mechanika tekutin

  • 2013
  • R
  • Odkaz
Výsledek výzkumu

Change of the ranning glost oven

Change of the ranning glost oven heated by narural gas to a temperature of 200-260 0C...

JE - Nejaderná energetika, spotřeba a užití energie

  • 2008
  • Gfunk
Výsledek výzkumu

Expression of RAN, ZHX-2, and CHC1L genes in multiple myeloma patients and in myeloma cell lines treated with HDAC and Dnmts inhibitors

In myeloma patients we observed significant changes in the expression of RAN, ZHX-2, and CHC1L genes, but it was patient-specific. Our experiments illustrate new methodological approaches and troubleshooting for conducting gene expression st...

BO - Biofyzika

  • 2010
  • Jx
Výsledek výzkumu

Detailed 3-D CFD Model OF Small SI Engine

This work is part of EU project LESSCCV. Different turbulence models were tested and compared - simple LES one (Smagorinsky) and 2 different RANS ones. For the case of LES, 45 consecutive cycles were calculated and statistically evaluated to...

BJ - Termodynamika

  • 2011
  • R
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