Turbulence viscosity SPS

edited February 26 in Old versions

Dear all,

 

I am trying to modify the DSPH code implementing a Dynamic Smagorinsky viscosity model.

I see in the literature that the kernel function serves as a grid filter. At the standard Smagorinsky model

in the DSPH code I see:


 const float pow1=gradvel.xx*gradvel.xx + gradvel.yy*gradvel.yy + gradvel.zz*gradvel.zz;

const float prr=pow1+pow1 + gradvel.xy*gradvel.xy + gradvel.xz*gradvel.xz + gradvel.yz*gradvel.yz;


Where is the influence of the kernel function in this? When I search definition for the gradvel.* I do not find the influence of the kernel.

And I need this, to take an influence of 2h for the test filter.

Any help would be appreciated. 

Sign In or Register to comment.

Debug Trace

Notice
rich is deprecated. Use FormatService::renderHtml($content, Formats\RichFormat::FORMAT_KEY) instead.

#0 [internal function]: gdn_ErrorHandler(16384, 'rich is depreca...', '/var/www/forums...', 950, Array)
#1 /var/www/forums-dual-sphysics-org/library/core/functions.general.php(950): trigger_error('rich is depreca...', 16384)
#2 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1729): deprecated('rich', 'FormatService::...')
#3 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1479): Gdn_Format::rich('[{"insert":"Dea...')
#4 /var/www/forums-dual-sphysics-org/applications/vanilla/controllers/class.discussioncontroller.php(197): Gdn_Format::to('[{"insert":"Dea...', 'Rich')
#5 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(862): DiscussionController->index('2676', 'turbulence-visc...', '')
#6 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(279): Gdn_Dispatcher->dispatchController(Object(Gdn_Request), Array)
#7 /var/www/forums-dual-sphysics-org/index.php(29): Gdn_Dispatcher->dispatch()
#8 {main}
Notice
rich is deprecated. Use FormatService::renderHtml($content, Formats\RichFormat::FORMAT_KEY) instead.

#0 [internal function]: gdn_ErrorHandler(16384, 'rich is depreca...', '/var/www/forums...', 950, Array)
#1 /var/www/forums-dual-sphysics-org/library/core/functions.general.php(950): trigger_error('rich is depreca...', 16384)
#2 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1729): deprecated('rich', 'FormatService::...')
#3 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1479): Gdn_Format::rich('[{"insert":"Dea...')
#4 /var/www/forums-dual-sphysics-org/applications/vanilla/views/discussion/helper_functions.php(24): Gdn_Format::to('[{"insert":"Dea...', 'Rich')
#5 /var/www/forums-dual-sphysics-org/applications/vanilla/views/discussion/discussion.php(89): formatBody(Object(stdClass))
#6 /var/www/forums-dual-sphysics-org/applications/vanilla/views/discussion/index.php(31): include('/var/www/forums...')
#7 /var/www/forums-dual-sphysics-org/library/core/class.controller.php(778): include('/var/www/forums...')
#8 /var/www/forums-dual-sphysics-org/library/core/class.controller.php(1382): Gdn_Controller->fetchView('', false, false)
#9 /var/www/forums-dual-sphysics-org/library/core/class.pluggable.php(217): Gdn_Controller->xRender()
#10 /var/www/forums-dual-sphysics-org/applications/vanilla/controllers/class.discussioncontroller.php(310): Gdn_Pluggable->__call('render', Array)
#11 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(862): DiscussionController->index('2676', 'turbulence-visc...', '')
#12 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(279): Gdn_Dispatcher->dispatchController(Object(Gdn_Request), Array)
#13 /var/www/forums-dual-sphysics-org/index.php(29): Gdn_Dispatcher->dispatch()
#14 {main}