Rough Reynolds Number
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Resistencia aerodinamica: efeito dos metodos usados para especificar os parametros de rugosidade da superficie vegetada.
Os objetivos deste estudo foram determinar os parametros de rugosidade da superficie vegetada para momento (Zom) e para calor sensivel (Zoh) e examinar os efeitos dos criterios utilizados na obtencao desses parametros no calculo das resistencias aerodinamicas para momento e calor sensivel. A analise dos dados coletados sobre grama bermuda indicam que o param
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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2. Numerical Simulation of Flow with Heat Transfer in Periodic Rib Roughened Tubes / Simulação numérica de escoamentos com troca de calor no interior de tubos com nervuras periódicas
With the aim of develop a computational tool for thermodynamic optimization of heat exchangers, a computational code was implemented to solve the Navier-Stokes equations in an axisymmetric domain using the finite volume method and central differencing with Runge-Kutta explicit temporal advance and pressure-velocity coupling of fractional step type. This work
Publicado em: 2002
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3. Effect of different surface roughnesses on a turbulent boundary layer
The classical treatment of rough wall turbulent boundary layers consists in determining the effect the roughness has on the mean velocity profile. This effect is usually described in terms of the roughness function delta U+. The general implication is that different roughness geometries with the same delta U+ will have similar turbulence characteristics, at
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2000