Since 1963
ARTICLE
Numerical study on the influence of top and valley shape of the transverse groove on the drag reduction rate
1
Research Institute of Aero-Engine, Beihang University, Beijing, China
2
School of Energy and Power Engineering, Beihang University, Beijing, China
3
AECC Hunan Aviation Powerplant Research Institute, Zhuzhou, China
Submission date: 2023-04-20
Final revision date: 2023-07-06
Acceptance date: 2023-07-22
Online publication date: 2023-10-01
Publication date: 2023-10-30
Journal of Theoretical and Applied Mechanics 2023;61(4):741-754
KEYWORDS
TOPICS
ABSTRACT
This study investigates the drag reduction effect and mechanism of modified transverse
grooves by employing “Constant Width” and “Constant Height” filleting methods on the
top and valley of two-dimensional transverse V -shaped grooves. Results revealed a significant
increase in the total drag reduction rate, from 13.29% to 23.24%, when a constant width
fillet was applied to the grooves top at r3 = 0.3/p2mm. However, minimal or negative
effects were observed in other cases. These findings establish a preliminary theoretical basis
for future transverse groove design and processing.
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