Changes between Version 5 and Version 6 of doc/app/examples/dns
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- Nov 8, 2019 1:42:33 PM (5 years ago)
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doc/app/examples/dns
v5 v6 3 3 This chapter provides an example for a DNS validation run, where free convection over a heated plate was investigated. The reference for this simulation is case NsD from [#mellado2012 Mellado (2012)]. To save computational costs, the computationally cheaper case described in the appendix of [#mellado2012 Mellado (2012)] is attached. In the following, some background knowledge is given, to explain the simulation setup. 4 4 5 Apart from RANS and LES simulations, PALM can also be used to perform Direct Numerical Simulations (DNSs). In contrast to the RANS mode, there is no need to adjust PALM's system of equations. DNSs can be performed by just using appropriate settings in the _p3d file. The following terms in the equation of motion differ from each other depending on the used mode (left from ≠ DNS, right from ≠ LES mode, for more info see also[wiki:doc/tec/gov#Governingequations governing equations] and [wiki:doc/tec/sgs#Deardorffsubgrid-scalemodel subgrid-scale model]):5 Apart from RANS and LES simulations, PALM can also be used to perform Direct Numerical Simulations (DNSs). In contrast to the RANS mode, there is no need to adjust PALM's system of equations. DNSs can be performed by just using appropriate settings in the _p3d file. The following terms in the equation of motion differ from each other depending on the used mode (left from "≠" for DNS, right from "≠" for LES mode, more information can bee found at [wiki:doc/tec/gov#Governingequations governing equations] and [wiki:doc/tec/sgs#Deardorffsubgrid-scalemodel subgrid-scale model]): 6 6 7 7 {{{