Changeset 1198 for palm/trunk/TUTORIAL/SOURCE/exercise_cbl.tex
- Timestamp:
- Jul 4, 2013 12:38:18 PM (11 years ago)
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palm/trunk/TUTORIAL/SOURCE/exercise_cbl.tex
r954 r1198 73 73 \begin{itemize} 74 74 \scriptsize 75 \item<6-> domain size: about $\unit[2000 \times 2000 \times 1000]{m }$ ($x$/$y$/$z$)75 \item<6-> domain size: about $\unit[2000 \times 2000 \times 1000]{m^3}$ ($x$/$y$/$z$) 76 76 \item<7-> grid size: $\unit[50]{m}$ equidistant 77 77 \item<8-> simulated time: $\unit[3600]{s}$ … … 79 79 \item<10-> heatflux at top: $\unit[0.1]{K\ m\ s^{-1}}$ 80 80 \item<11-> initial temperature: $\unit[300]{K}$ everywhere 81 \item<12-> initial velocity: zero ,everywhere81 \item<12-> initial velocity: zero everywhere 82 82 \end{itemize} 83 83 \end{frame} … … 88 88 89 89 \begin{itemize} 90 \item<1-> How does the flow field look s like after 60 minutes simulated time? (what kind of output do you need to answer this?)91 \item<2-> How do the horizontally and temporally averaged vertical temperature and heat flux profile look like?90 \item<1-> How does the flow field look like after 60 minutes of simulated time? (What kind of output do you need to answer this?) 91 \item<2-> How do the horizontally and temporally averaged vertical temperature and heat flux profiles look like? 92 92 \item<3-> Is it really a large-eddy simulation, i.e. are the subgrid-scale fluxes much smaller than the resolved-scale fluxes? (How long should the averaging time interval be?) 93 93 \item<4-> How do the total kinetic energy and the maximum velocity components change in time? Has the flow become stationary? … … 108 108 \begin{itemize} 109 109 \scriptsize 110 \item[-]<2-> Is control ed by grid size (\textcolor{blue}{\texttt{dx}}, \textcolor{blue}{\texttt{dy}}, \textcolor{blue}{\texttt{dz}}) and number of grid points (\textcolor{blue}{\texttt{nx}}, \textcolor{blue}{\texttt{ny}}, \textcolor{blue}{\texttt{nz}}). Since the first grid point along oneof the directions has index 0, the total number of grid points used are \textcolor{blue}{\texttt{nx}}+1, \textcolor{blue}{\texttt{ny}}+1, \textcolor{blue}{\texttt{nz}}+1. The total domain size in case of cyclic horizontal boundary conditions is (\textcolor{blue}{\texttt{nx}}+1)*\textcolor{blue}{\texttt{dx}}, (\textcolor{blue}{\texttt{ny}}+1)*\textcolor{blue}{\texttt{dy}}.110 \item[-]<2-> Is controlled by grid size (\textcolor{blue}{\texttt{dx}}, \textcolor{blue}{\texttt{dy}}, \textcolor{blue}{\texttt{dz}}) and number of grid points (\textcolor{blue}{\texttt{nx}}, \textcolor{blue}{\texttt{ny}}, \textcolor{blue}{\texttt{nz}}). Since the first grid point along each of the directions has index 0, the total number of grid points used are \textcolor{blue}{\texttt{nx}}+1, \textcolor{blue}{\texttt{ny}}+1, \textcolor{blue}{\texttt{nz}}+1. The total domain size in case of cyclic horizontal boundary conditions is (\textcolor{blue}{\texttt{nx}}+1)*\textcolor{blue}{\texttt{dx}}, (\textcolor{blue}{\texttt{ny}}+1)*\textcolor{blue}{\texttt{dy}}. 111 111 \end{itemize} 112 112 … … 170 170 \frametitle{Further Hints} 171 171 172 \onslide<2-> You will find some more detailed information to solve this exercise in the PALM-online-documentation under (attention: the documentation is for atmospheric convection with free upper lid):\\172 \onslide<2-> You will find some more detailed information to solve this exercise in the PALM-online-documentation under:\\ 173 173 \ \\ 174 174 \small\url{http://palm.muk.uni-hannover.de/wiki/doc/app/examples/cbl}\\ 175 \ \\ 176 \normalsize (Attention: This documentation is for atmospheric convection with free upper lid.) 175 177 \ \\ 176 178 \ \\
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