Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Yung Hoon Yu"'
Publikováno v:
Journal of Mechanical Science and Technology. 24:1583-1594
In this work, the Blade Vortex Interaction (BVI) airloads characteristic for a rotor in descending flight condition is investigated using a nonlinear flexible multibody dynamics analysis code DYMORE. A free vortex wake model is incorporated into the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fa2bcb144d3d057684511ef6c6bf7ea
https://doi.org/10.1007/s12206-010-0507-0
https://doi.org/10.1007/s12206-010-0507-0
Publikováno v:
Journal of the Korean Society for Aeronautical Space Science. 38:309-314
In this work, the helicopter price estimation formula from Harris & Scully is revised and updated for more accurate prediction of the current prices of helicopters which can be applied in the preliminary design stage. As many as 74 helicopter price a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64fae33486482404cd29a57f576b4391
https://doi.org/10.5139/jksas.2010.38.4.309
https://doi.org/10.5139/jksas.2010.38.4.309
Publikováno v:
International Journal of Aeronautical and Space Sciences. 10:52-62
A three-dimensional compressible Navier-Stokes solver, KFLOW, using overlapped grids has recently been developed to simulate unsteady flow phenomena over helicopter rotor blades. The blade-vortex interaction is predicted for a descending flight using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::576961981cdfc719768e9bffab6555b8
https://doi.org/10.5139/ijass.2009.10.2.052
https://doi.org/10.5139/ijass.2009.10.2.052
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 36:719-727
A 3-D compressible Navier-Stokes solver using overlapped grids is developed to predict a flow-field around a hovering rotor. The flow solver is verified by a parametric study with the grid spacing of wake grid, spatial accuracy and turbulence model.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1708decdca46d127957cc38f489d9d3
https://doi.org/10.5139/jksas.2008.36.8.719
https://doi.org/10.5139/jksas.2008.36.8.719
Publikováno v:
TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 51:43-51
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbbe0f2255650dc0fb0bfb4ebc4b0b7d
https://doi.org/10.2322/tjsass.51.43
https://doi.org/10.2322/tjsass.51.43
Publikováno v:
TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 51:184-192
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55662c865470583800f0b5c116fe6a68
https://doi.org/10.2322/tjsass.51.184
https://doi.org/10.2322/tjsass.51.184
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 34:1-8
A steady prediction method is presented to compute dynamic damping coefficients for axisymmetric projectiles. Viscous flow analysis is essential to the steady method using a zero-spin coning motion in the inertial coordinate frame. The present method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fefbfe0e0e34398eab742d8dba0e533
https://doi.org/10.5139/jksas.2006.34.11.001
https://doi.org/10.5139/jksas.2006.34.11.001
Publikováno v:
19th AIAA Computational Fluid Dynamics.
Three-dimensional Euler and Navier-Stokes equations are solved using an overlapped grid system to compute the unsteady flow field around helicopter rotor blade in forward flight. To verify the automated overlapped grid solver, the unsteady flow field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19ddb52141f23ad1aa85d64b841d0b52
https://doi.org/10.2514/6.2009-4268
https://doi.org/10.2514/6.2009-4268
Autor:
Yung Hoon Yu, Soo Hyung Park, Jin Hwan Ko, Eu-Gene Kim, Jang-Hyuk Kwon, Il-Ju Park, Sung Nam Jung, Jeewoong Kim
Publikováno v:
26th AIAA Applied Aerodynamics Conference.
Three-dimensional Navier-Stokes equations are solved using overset-grid to compute rotor performance in hover including aero-elastic effects. The rigid blade problem of Caradonna and Tung is applied to the verification of an overlapped grid Navier-St
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a173861a830db05d44c97b899dc0951
https://doi.org/10.2514/6.2008-6729
https://doi.org/10.2514/6.2008-6729
Handwritten Signature Authentication Scheme using Integrated Statistical Analysis of Bi-Color Images
Publikováno v:
ICCSA Workshops
A technique for the generation of overlapped grid using a simple shooting method, that is a cut-paste algorithm, is presented. It makes possible to generate overlapping grids with moderate mesh interface region. To generate overlapped grids with mini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81ab2a9230b52dc649f2534858e0c6bb
https://doi.org/10.1109/iccsa.2007.15
https://doi.org/10.1109/iccsa.2007.15