NUMERICAL STUDY ON THE INFLUENCE OF TOP AND VALLEY SHAPE OF THE TRANSVERSE GROOVE ON THE DRAG REDUCTION RATE.

Autor: ZHIPING LI, YUEREN ZUO, HANAN LU, LONG HE, BO MENG
Předmět:
Zdroj: Journal of Theoretical & Applied Mechanics (14292955); 2023, Vol. 61 Issue 4, p741-754, 14p
Abstrakt: 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/v²mm. However, minimal or negative effects were observed in other cases. These findings establish a preliminary theoretical basis for future transverse groove design and processing. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index