Impact of Changing Inlet Modes in Ski Face Masks on Adolescent Skiing: A Finite Element Analysis Based on Head Models

Author:

Huang Minxin1,Zhang Ruiqiu1,Zhang Xiaocheng2ORCID

Affiliation:

1. International Cooperation Center for Design Strategy of Guangdong, Hong Kong and Macao Greater Bay Area, School of Design, South China University of Technology, Guangzhou 510000, China

2. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China

Abstract

Due to the material properties of current ski face masks for adolescents, moisture in exhaled air can become trapped within the material fibers and freeze, leading to potential issues such as breathing difficulties and increased risk of facial frostbite after prolonged skiing. This paper proposes a research approach combining computational fluid dynamics (CFD) and ergonomics to address these issues and enhance the comfort of adolescent skiers. We developed head and face mask models based on the head dimensions of 15–17-year-old males. For enclosed cavities, ensuring the smooth expulsion of exhaled air to prevent re-inhalation is the primary challenge. Through fluid simulation of airflow characteristics within the cavity, we evaluated three different inlet configurations. The results indicate that the location of the air inlets significantly affects the airflow characteristics within the cavity. The side inlet design (type II) showed an average face temperature of 35.35 °C, a 38.5% reduction in average CO2 concentration within the cavity, and a smaller vortex area compared to the other two inlet configurations. Although the difference in airflow velocity within the cavity among the three configurations was minimal, the average exit velocity differed by up to 0.11 m/s. Thus, we conclude that the side inlet configuration offers minimal obstruction to airflow circulation and better thermal insulation when used in the design of fully enclosed helmets. This enhances the safety and comfort of adolescent wearers during physical activities in cold environments. Through this study, we aim to further promote the development of skiing education, enhance the overall quality of adolescents’ skiing, and thus provide them with more opportunities for the future.

Funder

Key Research and Development Program of the Guangzhou Municipality

Ministry of Education Humanities and Social Sciences Research Planning Fund

Science and Technology Program of Guangzhou

Publisher

MDPI AG

Reference35 articles.

1. (2023, December 20). International Report on Snow & Mountain Tourism-Overview of the Key Industry Figures for Ski Resorts; 2020. Available online: https://www.vanat.ch/RM-world-report-2020.pdf.

2. (2023, December 20). China’s Ski Industry White Book (2020 Annual Report). Available online: https://www.sohu.com/a/4594.

3. Peng, Y., Yin, P., and Matzler, K. (2022). Analysis of Destination Images in the Emerging Ski Market: The Case Study in the Host City of the 2022 Beijing Winter Olympic Games. Sustainability, 14.

4. An evidence-based review: Efficacy of safety helmets in the reduction of head injuries in recreational skiers and snowboarders;Haider;J. Trauma Acute Care Surg.,2012

5. (2024, May 13). International Ski Mountaineering Federation, 2020. Ski Mountaineering Joins the Youth Olympic Games in Lausanne 2020. Available online: http://www.ismf-ski.org/webpages/ski-mountaineering-joins-the-youth-olympic-games-in-lausanne-2020/.

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