Door Mirror Airflow Guide for Wind Noise and Wake Vortex Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing door mirror structures generate wind noise in vehicle interiors due to airflow around them, which is not effectively mitigated by existing designs that attempt to redirect airflow along the side glass.
Innovation Solution
A door mirror structure featuring an airflow guide on the upper portion of the door mirror, which deflects traveling wind outward along the guide, reducing noise by increasing flow velocity and pressure differences, and stabilizing the vehicle with downforce.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door mirror protrudes outward from the vehicle to provide rearward viewing, then rear visibility is improved, but vortex flow is generated around the door mirror causing wind noise
Solution Approach 1:
The airflow guide utilizes curved surfaces to redirect airflow smoothly around the door mirror. The curved geometry guides the air flow along the door mirror surface and redirects it outward, reducing vortex formation and wind noise while preserving the door mirror's protruding structure for rear visibility
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces interior noise and prevents wake vortex entry, enhancing vehicle stability by guiding wind outward and reducing lift forces.
Implementation Method 1
guides traveling wind so that traveling wind generated when the vehicle is traveling flows toward a vehicle outer side along the airflow guide
Implementation Method 2
increasing flow velocity and pressure differences
Data Source
AI summary
A door mirror structure includes a door mirror for a vehicle, and an airflow guide provided at an end portion on a vehicle rear side on an upper surface of the door mirror. The airflow guide guides traveling wind such that the traveling wind generated when the vehicle is traveling flows to a vehicle outer side along the airflow guide.