📄 http:^^www.cs.umd.edu^projects^hpsl^appl^appl-abs.html
字号:
Date: Tue, 14 Jan 1997 19:31:23 GMT
Server: Apache/1.1.1
Content-type: text/html
Content-length: 5565
Last-modified: Thu, 10 Oct 1996 18:19:16 GMT
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"><HTML><HEAD> <TITLE>Applications</TITLE> <META NAME="GENERATOR" CONTENT="Mozilla/3.0Gold (X11; I; SunOS 4.1.3 sun4c) [Netscape]"></HEAD><BODY TEXT="#000000" LINK="#0000FF" VLINK="#000080" ALINK="#FF0000" BACKGROUND="White_Granite_Background.gif"><CENTER><P><HR></P></CENTER><H4 ALIGN=CENTER><!WA0><IMG SRC="http://www.cs.umd.edu/projects/hpsl/appl/applic.GIF" HEIGHT=130 WIDTH=394> </H4><DL><CENTER><P><HR></P></CENTER><CENTER><DT><B><FONT SIZE=+2>Computational Chemistry</FONT></B></DT></CENTER><B><FONT SIZE=+2></FONT></B><B><FONT SIZE=+2></FONT></B><CENTER><DT><B><I><FONT SIZE=+2><P><!WA1><A HREF="http://www.cs.umd.edu/projects/hpsl/appl/chem1.html">ComputationalChemistry Publications</A></FONT></I></B></DT></CENTER><CENTER><DT><HR WIDTH="100%"></DT></CENTER><CENTER><P><B><FONT SIZE=+3>DirectSimulation Monte Carlo (DSMC) Methods<P><!WA2><A HREF="http://www.cs.umd.edu/projects/hpsl/appl/dsmc1.html"> <i>Direct Simulation Monte Carlo (DSMC) Publications</A></i></FONT></B></P></CENTER> <P><P>In highly adaptive irregular problems such as many Particle-In-Cell(PIC) codes and Direct Simulation Monte Carlo (DSMC) codes, data accesspatterns may vary from time step to time step. </P><P>To efficiently parallelize such adaptive irregular problems on distributedmemory parallel computers, effective methods for domain partitioningmust be addressed. </P><P>A simple one-dimensional domain partitioning method is implemented andcompared with unstructured mesh partitioners such as recursive coordinatebisection and recursive inertial bisection.</P><UL><H2 ALIGN=CENTER><B><!WA3><A HREF="http://www.cs.umd.edu/projects/hpsl/demos/app-demo.html">DSMCSimulations</A> </B></H2></UL><P><HR></P><CENTER><DT><B><FONT SIZE=+2>Sparse Matrix Applications </FONT></B></DT></CENTER><B><FONT SIZE=+2></FONT></B><B><FONT SIZE=+2></FONT></B><CENTER><DT><B><I><FONT SIZE=+2><P><!WA4><A HREF="http://www.cs.umd.edu/projects/hpsl/appl/matrix1.html">SparseMatrix Application Publications</A></FONT></I></B></DT></CENTER><B><I><FONT SIZE=+2><!WA5><A HREF="http://www.cs.umd.edu/projects/hpsl/appl/matrix1.html"></A></FONT></I></B><B><I><FONT SIZE=+2><!WA6><A HREF="http://www.cs.umd.edu/projects/hpsl/appl/matrix1.html"></A></FONT></I></B><CENTER><DT><HR><P></DT></CENTER><B><FONT SIZE=+2></FONT></B><CENTER><DT><B><FONT SIZE=+2>Computational Combustion</FONT></B></DT></CENTER><B><FONT SIZE=+2></FONT></B><CENTER><DT><B><I><FONT SIZE=+2><P><!WA7><A HREF="http://www.cs.umd.edu/projects/hpsl/appl/combust1.html">ComputationalCombustion Publications</A></FONT></I></B></DT></CENTER><B><I><FONT SIZE=+2><!WA8><A HREF="http://www.cs.umd.edu/projects/hpsl/appl/combust1.html"></A></FONT></I></B><B><I><FONT SIZE=+2><!WA9><A HREF="http://www.cs.umd.edu/projects/hpsl/appl/combust1.html"></A></FONT></I></B><UL><P>Detailed multi-dimensional numerical simulations provide an ideal vehicleto study fundamental properties of hydrocarbon flames. The physical processesin hydrocarbon flames are highly complex and interact in a strongly non-linearfashion. Numerical experimentation is an excellent way to isolate physicalprocesses, study their interactions, or predict important properties suchas flammability limits. The study of flammability limits is of great practicalimportance to fire safety. Near the flammability limit, several physicalprocesses, especially chemistry, become very important and the interactionamong them becomes crucial in determining the flammability limit. Onlyhighly detailed models which include detailed chemistry and diffusive processescan obtain the correct flammability limits. </P><P>The extinction of hydrocarbon flames is a multidimensional, transientprocess. To date, sufficiently detailed calculations for hydrocarbon flameshas only been carried out for steady-state flames. Some preliminary calculationsof transient methane flames with moderately detailed flames have been carriedout at the Naval Research Laboratory. These calculations clearly show theneed for including detailed chemistry in hydrocarbon flame modeling. Thereaction scheme used in these calculations used 15 species and 35 reactions.A complete reaction mechanism for methane would involve 50 species and200 reactions. For higher hydrocarbons, which are of more interest to theNavy, the number of species and reactions is far greater. These calculationsare currently beyond the capabilities of current supercomputers. </P><P>Parallel computers are only means currently available to perform thesecalculations. Thus it is imperative that the current detailed flame codebe ported to a parallel machine. The existing sequential code has beenextensively tested and verified, so to ensure reliability, the code shouldbe ported with only minimum modification. The PARTI software will enableus to port the code to a wide variety of parallel computes with limiteddisruption to the existing sequential code. </P><P>The flame code is not restricted to hydrocarbon fuels and can be generalizedto other energetic fuels. A parallel reactive flow code will provide theNavy with a very powerful tool to study these fuels. </P></UL><P><HR></P><CENTER><P><!WA10><A HREF="http://www.cs.umd.edu/projects/hpsl.html"><!WA11><IMG SRC="http://www.cs.umd.edu/projects/hpsl/appl/smglass.gif" HEIGHT=51 WIDTH=234></A></P></CENTER><CENTER><P>[<!WA12><A HREF="http://www.cs.umd.edu/fs/www/projects/hpsl/appl/appl-abs.html">Applications</A>| <!WA13><A HREF="http://www.cs.umd.edu/fs/www/projects/hpsl/io/io.html">HighPerformance I/O</A> | <!WA14><A HREF="http://www.cs.umd.edu/fs/www/projects/hpsl/compilers/compilers.html">Compilers</A>| <!WA15><A HREF="http://www.cs.umd.edu/fs/www/projects/hpsl/tool/tools.html">Tools</A>]</P></CENTER><P>Questions about the system or webserver: <!WA16><A HREF="mailto:webmaster@cs.umd.edu">webmaster@cs.umd.edu<BR></A>Problems with publications homepage: <!WA17><A HREF="mailto:wes@cs.umd.edu">wes@cs.umd.edu</A></P></DL></BODY></HTML>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -