Related Experiment Video
Updated: Apr 28, 2026
09:12
A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation
Published on: June 28, 2015
7.7K
Experimental study of fluid-thermal-structural interactions in a Mach-10 compression corner using super-ellipse-based
Travis A Duchene1, Antonio G Schöneich1, Brett F Bathel2
1Department of Aerospace Engineering, University of Maryland, College Park, MD 20742 USA.
Experiments in Fluids
|April 27, 2026
Summary
This study investigated fluid-thermal-structural interactions on a compliant panel under shock-wave/boundary-layer interaction (SWBLI) at Mach 10. Panel deformations significantly altered its vibration modes, with higher frequency modes showing decreased vibrational amplitude as the panel heated.
Area of Science:
- Fluid Dynamics
- Aeroelasticity
- Materials Science
Background:
- Shock-wave/boundary-layer interaction (SWBLI) is critical in high-speed flight.
- Compliant panels are susceptible to aero-thermal loads, affecting structural integrity.
- Understanding panel response to SWBLI is crucial for aerospace applications.
Purpose of the Study:
- To experimentally investigate the fluid-thermal-structural interaction of a clamped compliant panel under Mach 10 SWBLI.
- To characterize the panel's surface response, deformation, and modal behavior under aero-thermal loading.
- To analyze the influence of ramp angle and pressure differential on panel dynamics.
Main Methods:
- Experimental study of a clamped compliant panel exposed to SWBLI induced by a compression ramp at Mach 10.
- Flowfield measurements using a rigid ramp to characterize the boundary layer and SWBLI.
- Full-field, time-resolved panel deformation measurement using high-speed photogrammetry with a novel marker-tracking routine.
- SolidWorks simulations to analyze panel curvature effects on mode shapes.
Main Results:
- Transitional boundary layer and variable SWBLI (attached to fully separated) observed with increasing ramp angle.
- Significant static panel deformations (several times panel thickness) occurred due to aero-thermal loads.
- Panel deformations and gradients modified existing panel modes and introduced new, irregular shapes due to curvature.
- Increasing ramp angle excited more panel modes; increasing pressure differential increased modal frequencies and decreased amplitudes.
- Lower frequency modes increased in frequency with heating and deformation, while higher frequency modes (>3 kHz) decreased.
Conclusions:
- Fluid-thermal-structural interaction significantly alters compliant panel dynamics under intense SWBLI.
- Panel curvature plays a crucial role in generating complex, non-classical mode shapes.
- Transient thermal and deformation effects lead to frequency shifts in panel vibration modes.
More Related Videos
Related Concept Videos
01:30Typical Model Studies
809
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
809
01:17Steady, Laminar Flow Between Parallel Plates
1.1K
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
1.1K
01:05Fluid Pressure over Flat Plate of Constant Width
1.8K
When a body is submerged in water, it experiences fluid pressure acting normal on its surface and distributed over its area. For better design structures, it is crucial to determine the magnitude and location of the resultant force acting on the surface. In the case of a rectangular plate of constant width submerged in water, the pressure increases with depth, resulting in a linearly varying trapezoidal pressure distribution from the upper to the lower edge of the plate.
The resultant force...
The resultant force...
1.8K
01:12Fluid Pressure over Curved Plate of Constant Width
1.5K
When a curved plate of constant width is submerged in a liquid, the pressure acting normal to the plate varies continuously both in magnitude and direction. Calculating the magnitude and location of the resultant force at a point is often challenging for such cases. One of the methods to determine the resultant force and its location involves separately calculating the horizontal and vertical components of the resultant force. This complex calculation can be simplified by representing the...
1.5K
01:02Fluid Pressure over Flat Plate of Variable Width
1.7K
When a flat plate is submerged in a fluid, the fluid exerts pressure on the plate. This pressure can lead to many different phenomena, including drag and buoyancy. To understand the behavior of the fluid over a flat plate of variable width, it is essential to analyze the distribution of the pressure exerted.
The pressure distribution on the plate can be calculated by determining the force that acts on a differential area strip of the plate. Thus, the magnitude of the force is equal to the...
The pressure distribution on the plate can be calculated by determining the force that acts on a differential area strip of the plate. Thus, the magnitude of the force is equal to the...
1.7K
01:07Laminar and Turbulent Flow
9.7K
Fluid dynamics is the study of fluids in motion. Velocity vectors are often used to illustrate fluid motion in applications like meteorology. For example, wind—the fluid motion of air in the atmosphere—can be represented by vectors indicating the speed and direction of the wind at any given point on a map. Another method for representing fluid motion is a streamline. A streamline represents the path of a small volume of fluid as it flows. When the flow pattern changes with time, the...
9.7K