Paragraph Distribution of $y^{+}$ values on manikin surface partitions
Based on the PDF document entitled ‘part CFDapproach’ and the attached Word document ‘’ document to rework short’’, can you write a quarter of a page to comment on the distribution of $y^{+}$ values on manikin surface partitions for the 6 different meshes based on figure 1.6 (see pdf part CFDapproach part page 9) from the section (see pdf part CFDapproach part page 7) and add several article references via google scholar bibitex to confirm the comments ansys fluent forum below for y+ concerning URANS simulations with for pure thermal plume phenomena of a driver in car cabin.
Explain clearly and precisely, as well as the reasons from a technical point of view, why y+< 1 and also for Pr (prandtl number) in the case of the human thermal plume (natural convection) for URANS simulations with the SST k – ω model.
All the parameters used for this simulation can be found on page 6 (see pdf part CFDapproach).
From ansys fluent forum;
When we are working with a heat transfer problem, it is extremely important to resolve your sub-layers. Please note that it is important to resolve both momentum and thermal sub-layers in our case. Therefore, most meshes with y+ < 1 might be necessary. We might have to take the effect of Pr on our meshes when modelling heat transfer. If Pr > 1, our thermal sub-layer is much thinner than the momentum and the problem will require much thinner meshes. it’s ensuring 10-15 layers for the sub-layer.
\chapter{Preprocessing and postprocessing}\label{couplingpreprocessingbis}
(see PDF document entitled ‘part coupled approach’ pages 11-19 for the concerning sections).
Read articles entitled
– Geometrical characteristics’ impact over the thermal plume modelling with breathing thermal manikins
– Geometrical form assessment of a CFD based breathing thermal manikins, designed by simplified polygonal shapes
\subsection{Comparison of CFD models based on Suzi and Fiala VTMs}
Rewrite this section in a clearer and more precise manner, considering and adding appropriate additional comments with minimum a quarter of a page for figures 2.10 and 2.11 (see PDF document entitled ‘part coupled approach’ pages 12-13).
– The two manikins have different geometric and surface characteristics. Suzi manikin = humanoid manikin fiala manikin = polygonal manikin
– The arms of the two manikins are not of the same shape and orientation, which affects the local airflow differently.
– The Suzi manikin’s occipital region and neck are in direct contact with the headrest. In contrast, the head of the Fiala manikin has an open space between the rear region and the headrest
\subsection{Mesh independence study for uncoupled models} \label{meshstudycase1uncoupled}
Rewrite this section in a clearer and more precise manner, considering and adding appropriate additional comments with minimum a quarter of a page for figures 2.12, 2.13, 2.14 and 2.15 (see PDF document entitled ‘part coupled approach’ pages 15-17).
\paragraph{Comparison of time-averaged velocity profiles between CFD and uncoupled models}
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