ASL
0.1.7
Advanced Simulation Library
locomotive_stability.cc
Example: Locomotive stability Required input file:
locomotive.stl
/*
* Advanced Simulation Library <http://asl.org.il>
*
* Copyright 2015 Avtech Scientific <http://avtechscientific.com>
*
*
* This file is part of Advanced Simulation Library (ASL).
*
* ASL is free software: you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, version 3 of the License.
*
* ASL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with ASL. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <
math/aslVectors.h
>
#include <
math/aslTemplates.h
>
#include <
aslGeomInc.h
>
#include <
math/aslPositionFunction.h
>
#include <
aslDataInc.h
>
#include <
acl/aclGenerators.h
>
#include <
writers/aslVTKFormatWriters.h
>
#include <
num/aslLBGK.h
>
#include <
num/aslLBGKBC.h
>
#include <
utilities/aslTimer.h
>
#include <
acl/aclUtilities.h
>
#include <
readers/aslVTKFormatReaders.h
>
#include <
utilities/aslParametersManager.h
>
typedef
float
FlT
;
//typedef double FlT;
typedef
asl::UValue<double>
Param
;
using
asl::AVec
;
using
asl::makeAVec
;
asl::SPDistanceFunction
generateNozzels
(
asl::Block
& bl)
{
double
y(10.33);
double
z(3.08);
double
h(1.);
double
rNozzel(.3);
double
n(4.);
double
x0(-20.);
double
xE(-6.);
double
dx
(bl.
dx
);
asl::SPDistanceFunction
res(
generateDFCylinder
(rNozzel,
makeAVec
(0., 0., h),
makeAVec
(x0, y, z + h * .5)));
for
(
unsigned
int
i(1); i < n; ++i)
res = res |
generateDFCylinder
(rNozzel,
makeAVec
(0., 0., h),
makeAVec
(x0 + i * (xE-x0)/n, y, z+h*.5));
return
normalize
(res,
dx
);
}
int
main
(
int
argc,
char
* argv[])
{
// Optionally add appParamsManager to be able to manipulate at least
// hardware parameters(platform/device) through command line/parameters file
asl::ApplicationParametersManager
appParamsManager(
"locomotive_stability"
,
"1.0"
);
asl::Parameter<string>
input(
"input"
,
"path to the geometry input file"
);
appParamsManager.load(argc, argv);
Param
dx
(0.25);
Param
dt(1.);
Param
nu(.01);
Param
nuNum(nu.v()*dt.v()/
dx
.v()/
dx
.v());
std::cout <<
"Data initialization... "
<<
flush
;
auto
locomotive(
asl::readSurface
(input.v(),
dx
.v(), .5, 1., 0., 1., 2., 4.));
asl::Block
block(locomotive->getInternalBlock());
auto
forceField(asl::generateDataContainerACL_SP<FlT>(block, 3, 1u));
asl::initData
(forceField,
makeAVec
(0., 0., 0.));
std::cout <<
"Finished"
<< endl;
std::cout <<
"Numerics initialization... "
<<
flush
;
asl::SPLBGK
lbgk(
new
asl::LBGK
(block,
acl::generateVEConstant
(
FlT
(nu.v())),
&
asl::d3q15
()));
lbgk->init();
asl::SPLBGKUtilities
lbgkUtil(
new
asl::LBGKUtilities
(lbgk));
lbgkUtil->initF(
acl::generateVEConstant
(.1,.0,.05));
auto
vfTunnel(
asl::generatePFConstant
(
makeAVec
(0.1,0.,0.)));
std::vector<asl::SPNumMethod> bc;
std::vector<asl::SPNumMethod> bcV;
auto
nozzelsMap(asl::generateDataContainerACL_SP<FlT>(block, 1, 1u));
asl::initData
(nozzelsMap,
generateNozzels
(block));
bc.push_back(
generateBCNoSlip
(lbgk, locomotive));
bcV.push_back(
generateBCNoSlipVel
(lbgk, locomotive));
bc.push_back(
generateBCConstantPressureVelocity
(lbgk, 1.,
makeAVec
(0.1,0.,0.05),
{
asl::X0
,
asl::XE
,
asl::Y0
,
asl::YE
,
asl::Z0
,
asl::ZE
}));
bc.push_back(
generateBCConstantPressureVelocity
(lbgk, 1.,
makeAVec
(0.,0.,-0.1), nozzelsMap));
initAll
(bc);
initAll
(bcV);
auto
computeForce(
generateComputeSurfaceForce
(lbgk, forceField, locomotive));
computeForce->init();
std::cout <<
"Finished"
<< endl;
std::cout <<
"Computing..."
<< endl;
asl::WriterVTKXML
writer(appParamsManager.getDir() +
"locomotive_stability"
);
writer.
addScalars
(
"locomotive"
, *locomotive);
writer.addScalars(
"nozzels"
, *nozzelsMap);
writer.addScalars(
"rho"
, *lbgk->getRho());
writer.addVector(
"v"
, *lbgk->getVelocity());
writer.addVector(
"force"
, *forceField);
executeAll
(bc);
executeAll
(bcV);
computeForce->execute();
writer.write();
asl::Timer
timer, timer1, timer2;
timer.
start
();
for
(
unsigned
int
i(1); i < 40001; ++i)
{
lbgk->execute();
executeAll
(bc);
if
(!(i%1000))
{
cout << i << endl;
executeAll
(bcV);
computeForce->execute();
writer.write();
}
}
timer.
stop
();
cout <<
"Finished"
<< endl;
cout <<
"Computation statistic:"
<< endl;
cout <<
"Real Time = "
<< timer.
realTime
() <<
"; Processor Time = "
<< timer.
processorTime
() <<
"; Processor Load = "
<< timer.
processorLoad
() * 100 <<
"%"
<< endl;
return
0;
}
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