Boundary Layer Controls TRIZ Cases
- Plasma Actuator Flow Control for Rotary Wing Blade Stall
A plasma actuator applies voltage to control flow around a rotary wing blade.
- Deformable Bump Cover for Aircraft Blade Shock Wave Suppression
An elastic alloy bump cover displaces between steady and deformed states to reduce drag caused by shock waves across varying lift coefficients.
- Laser Shockwave Flow Control for Air Vehicle Flight Path
Pulsed laser energy deposition generates shockwaves to modify fluid flow along control surfaces.
- Simplified Fluidic Oscillator for Aircraft Aerodynamics
Single-path fluidic oscillators eliminate feedback loops to reduce device complexity and drag, improving aircraft performance reliability.
- Aircraft Porous Skin Performance Evaluation System
Evaluation system maintains porous skin performance by monitoring boundary layer control effectiveness and activating targeted purging to reduce drag.
- Fluidic Boundary Layer Control on Multi-Element Aircraft Wings
Electrically driven actuators eliminate combustion hazards and structural fatigue while maintaining jet velocity for effective flow control.
- Multi-Stage Synthetic Jet Actuator for High-Velocity Airflow Control
Stacked plenums and piezoelectric discs in a multi-stage actuator increase airflow velocity without expanding the device footprint.
- Pneumatic Splitter Plate for Aircraft Landing Gear Noise
Air jets from a blowing device delay vortex roll-up and block shear layer interactions, reducing broadband noise without adding rigid structure weight.
- Aircraft Wing Rib With Integrated Suction Conduit
An aircraft wing rib integrates a suction conduit to stabilize the laminar boundary layer.
- Recessed Lift Spoiler Assembly for UAV Airfoils
A recessed spoiler assembly translates within a UAV airfoil body to reduce lift via airflow separation.
- High-lift Flap with Active Flow Control for Boundary Layer Stability
A high-lift flap uses integrated air outlets and intakes to eject fluid jets that stabilize the boundary layer on the wing surface.
- Microstructured Coating Device with Secondary Pressure Control
A microstructured coating device uses secondary pressure elements to apply uniform load along the inner face of a moving band.
- Aerofoil Leading Edge with Segmented Suction and Heating
Segmented skin regions house suction holes and heating elements to maintain laminar flow while preventing ice accumulation in limited leading edge space.