Abstract
The results of an experimental investigation of the kinematic structure and tangential wall stresses are used for an analysis of the time-dependent friction drag and loss of mechanical energy in a turbulent pulsating flow in a round tube. The question of the applicability of the “quasistationary” approach to calculation of the friction and the dissipative loss in unsteady flow is discussed.
Similar content being viewed by others
Literature cited
J. W. Daily, W. L. Hankey, R. W. Olive, and J. M. Jordan, “Resistance coefficients for accelerated and decelerated flows through smooth tubes and orifices,” Trans. ASME,78, No. 5 (1956).
S. V. Denisov, “Friction coefficient in unsteady flows,” Inzh.-Fiz. Zh.,18, No, 1 (1970).
S. B. Markov, “Experimental investigation of the velocity structure and hydraulic resistances in unsteady pressurized turbulent flows,” Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 2 (1973).
Mizushina Tokuro, Maruyama Toshiro, and Shiozaki Yasumi, “Pulsating turbulent flow in a tube,” J. Chem. Eng. Japan,6, No. 6 (1973)
O. F. Vasil'ev and V. I. Kvon, “Unsteady turbulent flow in a tube,” Zh. Prikl. Mekh. Tekh. Fiz., No. 6 (1971).
P. Bradshaw and N. Gregory, “The determination of local turbulent skin friction from observations,” in: Aerospace Research Council on the Viscous Sublayer, Reports and Memoirs, London (1961), p. 3202.
V. I. Bukreev and V. M. Shakhin, “Experimental investigation of turbulence energy in an unsteady flow in a tube,” in: Mathematical Questions of Mechanics (Dynamics of a Continuous Medium, No. 22) [in Russian], Novosibirsk (1975).
Author information
Authors and Affiliations
Additional information
Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 1, pp. 160–162, January–February, 1977.
We thank O. F. Vasil'ev, on whose initiative and with whose support this work was carried out, and also E. M. Romanov, V. V. Zykov, and P. A. Drozhzhin for their great contribution to the. design of the experimental apparatus and provision of apparatus for the investigations.
Rights and permissions
About this article
Cite this article
Bukreev, V.I., Shakhin, V.M. Friction drag and energy loss in a turbulent pulsating flow in a tube. Fluid Dyn 12, 133–135 (1977). https://doi.org/10.1007/BF01074639
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01074639