Norberg U M
J Exp Biol. 1976 Oct;65(2):459-70. doi: 10.1242/jeb.65.2.459.
Steady-state aerodynamic and momentum theories were used for calculations of the lift and drag coefficients of Plecotus auritus in hovering flight. The lift coefficient obtained varies between 3-1 and 6-4, and the drag coefficient between --5-0 and 10-5, for the possible assumptions regarding the effective angles of attack during the upstroke. This demonstrates that hovering flight in Plecotus auritus can not be explained by quasi-steady-state aerodynamics. Thus, non-steady-state aerodynamics must prevail.
稳态空气动力学和动量理论被用于计算长耳蝠在悬停飞行时的升力系数和阻力系数。对于上冲程期间有效攻角的可能假设，所获得的升力系数在3.1至6.4之间变化，阻力系数在-5.0至10.5之间变化。这表明长耳蝠的悬停飞行不能用准稳态空气动力学来解释。因此，非稳态空气动力学必定占主导。
