免费
发表于 2025-3-28 17:51:13
H. Baurwith an airfoil surface, is important in many applications ranging from wind turbines and cooling fans to aircraft and submarines. This chapter presents an introduction to the major mechanisms of airfoil noise production. We begin with a review of leading edge noise that is produced by the interacti
Benign
发表于 2025-3-28 20:14:19
L. Beck,P. C. Hägelewith an airfoil surface, is important in many applications ranging from wind turbines and cooling fans to aircraft and submarines. This chapter presents an introduction to the major mechanisms of airfoil noise production. We begin with a review of leading edge noise that is produced by the interacti
破布
发表于 2025-3-29 01:25:29
U. Leute,W. Dollhopf,E. Liskainated, frustrated and occasionally gratified scientists and engineers searching for methods to delay laminar-to-turbulence transition, to reduce skin-friction drag in turbulent wall-bounded flows, to quell vibrations, and to suppress flow-induced noise. In its simplest form, the technique is passiv
PON
发表于 2025-3-29 06:26:23
http://reply.papertrans.cn/55/5407/540642/540642_44.png
沐浴
发表于 2025-3-29 10:13:22
M. Pietrallar examples are considered first where the waves are not vortical, namely waves across junctions in elastic tubes and those between two spring-supported elastic plates. It is assumed that the eigensolutions are known for the corresponding spatially homogeneous problems. The task is how to determine t
enhance
发表于 2025-3-29 12:15:01
http://reply.papertrans.cn/55/5407/540642/540642_46.png
licence
发表于 2025-3-29 15:36:19
G. Menges,G. Wübken,B. Horninated, frustrated and occasionally gratified scientists and engineers searching for methods to delay laminar-to-turbulence transition, to reduce skin-friction drag in turbulent wall-bounded flows, to quell vibrations, and to suppress flow-induced noise. In its simplest form, the technique is passiv
失望昨天
发表于 2025-3-29 21:09:08
http://reply.papertrans.cn/55/5407/540642/540642_48.png
细胞
发表于 2025-3-30 01:17:31
Isotherme und thermisch stimulierte Depolarisation in Polyäthylennkette eingebauter Dipole zurückzuführen und die Ergebnisse können mit Hilfe des Fröhlich-Modells der Dipolorientierung durch ein kontinuierliches Relaxationszeitspektrum beschrieben werden. Die Messung thermisch stimulierter Ströme erweist sich als einfaches Hilfsmittel das Spektrum der molekularen Beweglichkeit abzutasten.
相容
发表于 2025-3-30 07:15:28
http://reply.papertrans.cn/55/5407/540642/540642_50.png