{"id":212968,"date":"2022-04-29T16:37:10","date_gmt":"2022-04-29T16:37:10","guid":{"rendered":"\/forum\/forums\/reply\/212968\/"},"modified":"2022-04-29T16:37:10","modified_gmt":"2022-04-29T16:37:10","slug":"212968","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/212968\/","title":{"rendered":"Reply To: solid particles in a nozzle, dpm concentration"},"content":{"rendered":"<p>It depends on what you want to do\/see. Particle concentrations in 2d-axi systems aren&#8217;t always easy to interpret. <br \/>\nAdding more parcels and randomising the starting point changes the injection: it&#8217;s different and I can&#8217;t say if it&#8217;s better. <br \/>\nThe 30-60 degrees comment is relating to modelling a 30 degree sector, ie a 3d model. This removes the problems of whether the injection mass weighting changes the concentration as the inlet can have a uniform injection as the facet areas are actually there in 3d. Too low an angle gives a skew cell at the axis, too large an angle means you use too many cells. Given swirl and gravity tend to feature in many models I tend to run the full 360 degree nozzle. <\/p>\n","protected":false},"template":"","class_list":["post-212968","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"It depends on what you want to do\/see. Particle concentrations in 2d-axi systems aren&#039;t always easy to interpret. Adding more parcels and randomising the starting point changes the injection: it&#039;s different and I can&#039;t say if it&#039;s better. The 30-60 degrees comment is relating to modelling a 30 degree sector, ie a 3d model. This\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/212968\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: solid particles in a nozzle, dpm concentration | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"It depends on what you want to do\/see. Particle concentrations in 2d-axi systems aren&#039;t always easy to interpret. Adding more parcels and randomising the starting point changes the injection: it&#039;s different and I can&#039;t say if it&#039;s better. The 30-60 degrees comment is relating to modelling a 30 degree sector, ie a 3d model. 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Particle concentrations in 2d-axi systems aren't always easy to interpret. Adding more parcels and randomising the starting point changes the injection: it's different and I can't say if it's better. The 30-60 degrees comment is relating to modelling a 30 degree sector, ie a 3d model. 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Adding more parcels and randomising the starting point changes the injection: it's different and I can't say if it's better. The 30-60 degrees comment is relating to modelling a 30 degree sector, ie a 3d model. 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