Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where John B. Miles is active.

Publication


Featured researches published by John B. Miles.


AIAA Journal | 1995

Skin-friction measurements in three-dimensional, supersonic shock-wave/boundary-layer interaction

James L. Brown; John B. Miles; Oktay Ozcan

The experimental documentation of a three-dimensional shock-wave/boundary-layer interaction in a nominal Mach 3 flow is presented. The model consisted of a sting-supported cylinder, aligned with the freestream flow, and a 20-deg half-angle conical flare offset 1.27 cm from the cylinder centerline. Surface oil flow, laser light sheet illumination, and spark schlieren photography were used to document the flow topology. Extensive surface-pressure and skin-friction measurements were made throughout the interaction region. A laser interterometric skin-friction instrument was employed to acquire the skin-friction data. Resolved skin-friction measurements of C fx and C fz were made within the highly swept three-dimensional separated regions. The skin-friction data will be of particular value for turbulence modeling and computational fluid dynamics validation


Journal of Thermophysics and Heat Transfer | 2000

Thermal Analysis and Design of an Advanced Space Suit

Anthony B. Campbell; Jonathan D. French; Satish S. Nair; John B. Miles; Chin H. Lin

The thermal dynamics and design of an advanced space suit are considered. A transient model of the advanced space suit design has been developed and implemented using MATLAB ® /Simulink, to help with sizing, with design evaluation, and with the development of an automatic thermal comfort control strategy. The model is described and the thermal characteristics of the advanced space suit are investigated including various parametric design studies. The steady-state performance envelope for the advanced space suit is dee ned in terms of the thermal environment and human metabolic rate and the transient response of the human-suit ‐minimum consumables portable life support system is analyzed.


High Speed Photography, Videography, and Photonics IV | 1986

Development And Implementation Of An Aerodynamic Holographic Interferometry System

John B. Miles; Stephen E. Dunagan; James L. Brown

An aerodynamic holographic interferometry system has been developed and adapted for use with an existing supersonic wind tunnel. The tunnel had a 25.4 cm wide by 38.1 cm high test section, was an air-operated blow-down facility, and was run at nominal conditions of Mach number equal 2.85, total temperature of 270° K, and total pressure of 1.7 and 3.4 atmospheres. The associated fluid dynamics investigation centered on the SW/BLI problem occuring at an axisymmetric compression corner, physically created by a cylinder/cone intersection. The cylinder had a 5.08 cm diameter and was used with interchangeable conic flares of 12.5°, 20°, and 30° [each with cylinder afterbodies]. Complementary laser velocimeter measurements and Navier-Stokes computations are presented in support of the accuracy of the holographic interferometry results. The interferometry systems is illuminated by an available Q-switched ruby laser, which is expanded in the object beam to 30.48 cm diameter at the wind tunnel test section. A 5 mw He-Ne laser was used for alignment. The system features three modules: laser and reference beam, object beam expansion, and holocamera module. The design yielded excellent dynamic stability as a result of structural rigidity and placement of spatial filters far downbeam. Thermal stability also proved adequate. The system was easy to operate, and allowed for use with ambient lighting. Also, the system was necessarily operated remotely because of wind tunnel access limitations during a run. Cost figures and detailed equipment schematics are included in the paper. Additionally, the paper includes discussion of the Abel integral inversion program used to determine density profiles in the axisymmetric flow field from the recorded photographs.


international conference on evolvable systems | 1993

Evaluating Human Thermal Models for Advanced Portable Life Support System Control Development

Lee F. Smith; Satish S. Nair; John B. Miles; Bruce W. Webbon


AIAA Journal | 1985

Holographic interferometry study of an axisymmetric shock-wave/boundary-layer strong interaction flow

S. E. Dunagan; James L. Brown; John B. Miles


international conference on evolvable systems | 1996

EVALUATION OF HUMAN THERMAL MODELS FOR EVA APPLICATIONS

Lee F. Smith; Jonathan D. French; Satish S. Nair; John B. Miles; Bruce W. Webbon


Space Programs and Technologies Conference and Exhibit | 1994

Human thermal model evaluation for portable life support system control development

Lee F. Smith; Satish S. Nair; John B. Miles; Bruce W. Webbon


international conference on evolvable systems | 1994

Issues in the Development of Automatic Thermal Control for Portable Life Support Systems

Lee F. Smith; Anthony B. Campbell; Satish S. Nair; John B. Miles; Bruce Webbon


international conference on evolvable systems | 1994

Modeling the sweat regulation mechanism

Anthony B. Campbell; Satish S. Nair; John B. Miles; Bruce W. Webbon


international conference on evolvable systems | 1999

Design of a Transient Thermal Model of the Cryogenic PLSS

D. Craig Mays; Jonathan D. French; Satish S. Nair; John B. Miles; Chin H. Lin

Collaboration


Dive into the John B. Miles's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge