Year 2010, Volume 34 , Issue 3, Pages 155 - 170 2010-03-01

Hydrodynamic characteristics of high speed planing hulls, including trim effects
Hydrodynamic characteristics of high speed planing hulls, including trim effects

Ahmad Reza KOHANSAL [1] , Hassan GHASSEMI [2] , Mahmoud GHAISI [3]


The main objective of this work was to introduce and validate an appropriate algorithm for studying the hydrodynamic characteristics (i.e. pressure distribution, lift, drag, and wave pattern) of 3D planing hulls and wedge-shapes, including trim effects, moving at a constant speed on the surface of calm water. The work builds on the earlier work of the authors, paying more attention to wave pattern analysis. An integral equation was derived from Green's theorem and the unknown pressure distributions on each element were determined by solving an integral equation relating the potentials on the planing hull and the free surface. The hydrodynamic characteristics of the planing hull were calculated numerically in different wetted length-to-beam ratios, deadrise angles, trim angles, and Froude numbers. The effect of spray during planing was considered in the computations of numerical results. Computational results are presented and compared with existing theories and experiments. It is shown that the agreement between the results of experimental measurements and those of the present numerical method is satisfactory.
The main objective of this work was to introduce and validate an appropriate algorithm for studying the hydrodynamic characteristics (i.e. pressure distribution, lift, drag, and wave pattern) of 3D planing hulls and wedge-shapes, including trim effects, moving at a constant speed on the surface of calm water. The work builds on the earlier work of the authors, paying more attention to wave pattern analysis. An integral equation was derived from Green's theorem and the unknown pressure distributions on each element were determined by solving an integral equation relating the potentials on the planing hull and the free surface. The hydrodynamic characteristics of the planing hull were calculated numerically in different wetted length-to-beam ratios, deadrise angles, trim angles, and Froude numbers. The effect of spray during planing was considered in the computations of numerical results. Computational results are presented and compared with existing theories and experiments. It is shown that the agreement between the results of experimental measurements and those of the present numerical method is satisfactory.
Primary Language tr
Journal Section Articles
Authors

Author: Ahmad Reza KOHANSAL

Author: Hassan GHASSEMI

Author: Mahmoud GHAISI

Dates

Publication Date : March 1, 2010

Bibtex @ { tbtkengineering144965, journal = {Turkish Journal of Engineering and Environmental Sciences}, issn = {1300-0160}, eissn = {1303-6157}, address = {}, publisher = {TUBITAK}, year = {2010}, volume = {34}, pages = {155 - 170}, doi = {10.3906/kim-1112-54}, title = {Hydrodynamic characteristics of high speed planing hulls, including trim effects}, key = {cite}, author = {KOHANSAL, Ahmad Reza and GHASSEMI, Hassan and GHAISI, Mahmoud} }
APA KOHANSAL, A , GHASSEMI, H , GHAISI, M . (2010). Hydrodynamic characteristics of high speed planing hulls, including trim effects. Turkish Journal of Engineering and Environmental Sciences , 34 (3) , 155-170 . Retrieved from https://dergipark.org.tr/en/pub/tbtkengineering/issue/12129/144965
MLA KOHANSAL, A , GHASSEMI, H , GHAISI, M . "Hydrodynamic characteristics of high speed planing hulls, including trim effects". Turkish Journal of Engineering and Environmental Sciences 34 (2010 ): 155-170 <https://dergipark.org.tr/en/pub/tbtkengineering/issue/12129/144965>
Chicago KOHANSAL, A , GHASSEMI, H , GHAISI, M . "Hydrodynamic characteristics of high speed planing hulls, including trim effects". Turkish Journal of Engineering and Environmental Sciences 34 (2010 ): 155-170
RIS TY - JOUR T1 - Hydrodynamic characteristics of high speed planing hulls, including trim effects AU - Ahmad Reza KOHANSAL , Hassan GHASSEMI , Mahmoud GHAISI Y1 - 2010 PY - 2010 N1 - DO - T2 - Turkish Journal of Engineering and Environmental Sciences JF - Journal JO - JOR SP - 155 EP - 170 VL - 34 IS - 3 SN - 1300-0160-1303-6157 M3 - UR - Y2 - 2020 ER -
EndNote %0 Turkish Journal of Engineering and Environmental Sciences Hydrodynamic characteristics of high speed planing hulls, including trim effects %A Ahmad Reza KOHANSAL , Hassan GHASSEMI , Mahmoud GHAISI %T Hydrodynamic characteristics of high speed planing hulls, including trim effects %D 2010 %J Turkish Journal of Engineering and Environmental Sciences %P 1300-0160-1303-6157 %V 34 %N 3 %R %U
ISNAD KOHANSAL, Ahmad Reza , GHASSEMI, Hassan , GHAISI, Mahmoud . "Hydrodynamic characteristics of high speed planing hulls, including trim effects". Turkish Journal of Engineering and Environmental Sciences 34 / 3 (March 2010): 155-170 .
AMA KOHANSAL A , GHASSEMI H , GHAISI M . Hydrodynamic characteristics of high speed planing hulls, including trim effects. Turkish Journal of Engineering and Environmental Sciences. 2010; 34(3): 155-170.
Vancouver KOHANSAL A , GHASSEMI H , GHAISI M . Hydrodynamic characteristics of high speed planing hulls, including trim effects. Turkish Journal of Engineering and Environmental Sciences. 2010; 34(3): 170-155.

Authors of the Article
Ahmad Reza KOHANSAL [1]
Hassan GHASSEMI [2]
Mahmoud GHAISI [3]