What This Document Is
This document presents a computational fluid dynamics (CFD) study investigating the aerodynamic impact of breast size on a human figure, specifically modeled after a character from the anime *Miss Kobayashi’s Dragon Maid*. It uses engineering simulation to analyze how varying breast size affects drag, lift, and turbulence around the body. The research aims to explore the validity of the internet phrase “Flat is Justice” from an aerodynamic perspective and its potential relevance to sports aerodynamics.
Why This Document Matters
This work is relevant to researchers and students in fluid dynamics, biomechanics, and engineering interested in the intersection of computational modeling and human form aerodynamics. It’s also of interest to those following discussions around body image and its unexpected connections to scientific inquiry. The study provides a novel application of CFD techniques to a unique and culturally relevant question, potentially opening avenues for further research into anthropometrical effects on aerodynamic performance.
Common Limitations or Challenges
This study focuses on a single character design and a limited range of speeds. The results are specific to the modeled geometry and may not generalize to all body types or flow conditions. The research is preliminary and does not account for factors like clothing, posture variations, or the dynamic effects of movement. It is a computational study and does not include experimental validation.
What This Document Provides
The full document details: a description of the CFD methodology used (including software like ANSYS and the SST k-ω model); a comparison of drag, lift, and skin friction forces between models with different breast sizes; an analysis of turbulence kinetic energy (TKE) in the wake of the figures; a discussion of computational uncertainty; and recommendations for future research.
This preview *does not* include the detailed CFD results, the specific numerical simulations performed, or the full mathematical formulation of the governing equations. It also does not provide the complete uncertainty analysis or the full set of recommendations for future work.
