Search Results - "Morris, Philip J."

The biomechanical significance of the elongated rodent incisor root in the mandible during incision by Morris, Philip J. R., Cox, Philip G., Cobb, Samuel N. F.

“…Rodents are characterised by a distinctive masticatory apparatus which includes a single pair of enlarged and continually growing incisors. This morphology,…”
Get full text

Steady active control of noise radiation from highly heated supersonic jets by Prasad, Chitrarth, Morris, Philip J.

“…The goal of the present investigation is to study the effect of using fluid inserts for noise control at high exhaust temperatures by performing a sequence of…”
Get full text

A study of noise reduction mechanisms of jets with fluid inserts by Prasad, Chitrarth, Morris, Philip J.

“…The fluid insert technology is an active noise reduction technique that has been shown to successfully reduce supersonic jet noise in model scale nozzles. The…”
Get full text

Mechanical significance of morphological variation in diprotodont incisors by Morris, Philip J R, Cox, Philip G, Cobb, Samuel N

“…All rodents possess a single pair of enlarged incisors that grow throughout life. This condition (diprotodonty) is characteristic of Rodentia, but is also…”
Get full text

Flow and acoustics in a model rocket flame deflector and deflector cover by Yenigelen, Evren, Morris, Philip J

“…The design of a rocket launch environment is a complex process with many different aspects that are highly interconnected. Acoustics, which is one of these,…”
Get full text

The separation of radiating and non-radiating near-field pressure fluctuations in supersonic jets by Du, Yongle, Morris, Philip J.

“…Conventional analysis infers the jet noise source characteristics from either the turbulent fluctuations in the mixing layer, the near-field pressure…”
Get full text

Leveraging large eddy simulations to assess noise source imaging of a controlled supersonic jet by Prasad, Chitrarth, Hromisin, Scott, Morris, Philip J

“…Noise source imaging based on phased array measurements is an essential tool in the aeroacoustic analysis of new nozzle designs, especially at full-scale. This…”
Get full text

Introduction to the special issue on supersonic jet noise by Wall, Alan T, Gee, Kent L, Morris, Philip J, Colonius, Tim, Lowe, K Todd

“…This editorial's goals are (1) to highlight a few key developments in supersonic jet and launch vehicle noise research over the past several decades while…”
Get full text

Velocity measurements in jets with application to noise source modeling by Morris, Philip J., Zaman, K.B.M.Q.

“…This paper describes an experimental investigation of the statistical properties of turbulent velocity fluctuations in an axisymmetric jet. The focus is on…”
Get full text

Analytic formulation and numerical implementation of an acoustic pressure gradient prediction by Lee, Seongkyu, Brentner, Kenneth S., Farassat, F., Morris, Philip J.

“…Two new analytical formulations of the acoustic pressure gradient have been developed and implemented in the PSU-WOPWOP rotor noise prediction code. The…”
Get full text

Coupled crash mechanics and biomechanics of aircraft structures and passengers by Chen, Goong, Yang, Jing, Sergeev, Alexey, Wang, Mingwei, Wei, Chunqiu, Yeh, Jean, Morris, Philip J., Fournier, Noah J., Chen, Yining, Cheng, Xingong, Yang, Donghui, Xiang, Shuhuang, Scully, Marlan O.

“…•Have you ever seen the eigenmodes of vibration of a seated human body? Here, we show how they look and the possible associated injuries from the viewpoints of…”
Get full text

Convergent evolution in the Euarchontoglires by Morris, Philip J. R., Cobb, Samuel N. F., Cox, Philip G.

“…Convergence—the independent evolution of similar phenotypes in distantly related clades—is a widespread and much-studied phenomenon. An often-cited, but…”
Get full text

Noise reduction in supersonic jets by nozzle fluidic inserts by Morris, Philip J., McLaughlin, Dennis K., Kuo, Ching-Wen

“…Professor Philip Doak spent a very productive time as a consultant to the Lockheed-Georgia Company in the early 1970s. The focus of the overall research…”
Get full text

Dennis K. McLaughlin: Some history and achievements by Morris, Philip J

“…This paper describes some personal background and a few of the technical achievements of Professor Dennis K. McLaughlin, who has been my colleague at Penn…”
Get full text

Investigation of laminar to turbulent transition phenomena effects on impingement heat transfer by Isman, Mustafa Kemal, Morris, Philip J., Can, Muhiddin

“…Turbulent impinging air flow is investigated numerically by using the ANSYS-CFX ® code. All computations are performed by considering three-dimensional,…”
Get full text

The Use of an Adjoint Method for Optimization of Blowing in a Convergent-Divergent Nozzle by Sikarwar, Nidhi, Morris, Philip J.

“…This paper describes an adjoint optimization method. It is used to determine the blowing distribution in the diverging section of a convergent-divergent nozzle…”
Get full text

The Instability of High Speed Jets by Morris, Philip J.

“…This paper provides a review of the stability characteristics of high speed jets. These characteristics not only play a role in the transition of jet flows to…”
Get full text

Surface roughness effect on rotor broadband noise by Cheng, Baofeng, Han, Yiqiang, Brentner, Kenneth S, Palacios, Jose, Morris, Philip J, Hanson, David, Kinzel, Michael

“…The change of helicopter rotor broadband noise due to different surface roughness during ice accretion is investigated. Comprehensive rotor broadband noise…”
Get full text

A three dimensional parabolic equation method for sound propagation in moving inhomogeneous media by Cheng, Rui, Morris, Philip J., Brentner, Kenneth S.

“…In this paper, a formulation of the Helmholtz equation for three dimensional sound propagation in a moving inhomogeneous medium in cylindrical coordinates is…”
Get full text

Application of synthetic array techniques for improved simulations of hot supersonic jet noise by Nelson, Christopher C, Cain, Alan B, Dougherty, Robert, Brentner, Kenneth S, Morris, Philip J

“…The synthetic array technique has previously been used to provide insight for developing improved microphone array data processing techniques. In recent work,…”
Get full text