The viscosity balance method of skin friction measurement: further developments including applications to three-dimensional flow
The viscosity balance method of skin friction measurement: further developments including applications to three-dimensional flow
复制标题
表面摩擦测量的粘度平衡法:进一步发展,包括在三维流动中的应用
DOI:
10.1088/0022-3735/9/12/028
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发表时间:
1976
期刊:
影响因子:
--
通讯作者:
V. G. Kulkarni
中科院分区:
文献类型:
--
作者:
L. Tanner;V. G. Kulkarni
The application of oil film interferometry to the measurement of skin friction in air flow was described in an earlier paper by Tanner and Blows (see ibid., vol.9, no.4, p.194 (1976)). This work is extended in various ways. These include use of oil droplets as an alternative or in addition to continuous films, particularly for exploration of three-dimensional flows. The use of accidentally or deliberately introduced disturbances as streamline markers is described. The use of the characteristics method to follow transient changes of oil film profile is demonstrated. Many checks on the consistency of the methods and comparisons with theory are given. The results suggest that the methods can give a wealth of information concerning surface flows which would otherwise be difficult, if not impossible, to achieve.