http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013078910-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f276bb8b8284ee35d0b8dde9894c9278 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F2111-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F2113-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T90-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F30-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F30-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F30-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F30-15 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F19-00 |
| filingDate | 2012-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fefb82e9904d46ea9baeabcf64f05a46 |
| publicationDate | 2013-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2013078910-A1 |
| titleOfInvention | Numerical method for simulating vortex flow at aircraft wingtip |
| abstract | A numerical method for simulating vortex flow at an aircraft wingtip. According to characteristics of an incompressible flow, forces in two different forms are added to a momentum equation, so as to improve numerical simulation accuracy of a type of vortex-dominated flow fields. The forces in the two forms are respectively a corkscrew force of a vorticity in a gradient changing direction and a viscous diffusion force of the vorticity in the gradient changing direction. In this method, integral computation of the corkscrew force of the vorticity in the gradient changing direction in a computational grid is converted into flux computation of a force at an edge of the computational grid, so that spatial discretization thereof has a format of high order accuracy. Meanwhile, a source item of the momentum equation keeps the viscous diffusion force of the vorticity in the gradient changing direction, so as to improve the convergence and stability of a numerical solution. Different amplification coefficients are used for the two forces, so that the accuracy of the vorticity can be further maintained, and vortical motion of a wingtip vortex is more accurately simulated. |
| priorityDate | 2011-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.