About

Jiyoun Kim is an Associate Professor in the Department of Communication at the University of Maryland. Her research expertise lies in risk, science, and environmental communication. Her work contributes to understanding the factors that shape public understanding of and attitudes toward science, the environment, and risk; exploring the dynamics of public engagement with science, environmental, and risk issues on social media; and designing effective messages to help the public make informed choices. Her recent research focuses on how risk-related information is communicated by governments, non-governmental organizations, and media organizations; how online group-level cues influence individual cognitive processing and engagement; and how to develop communication strategies that capture public attention, promote behavioral responses, and support informed decision-making. Her research has been published in leading journals such as Science Communication, Environmental Communication, and Risk Analysis.

Research topics

• Materials science
• Chemistry
• Thermodynamics
• Mechanics
• Physics
• Meteorology
• Organic chemistry
• Environmental chemistry
• Inorganic chemistry
• Chromatography

Selected publications

• Experimental Investigation Into the Heat Transfer Mechanism of Oscillating Heat Pipes Using Temperature Sensitive Paint

  Journal of Heat Transfer · 2021 · 5 citations

  Senior authorCorresponding
  • Thermodynamics
  • Mechanics
  • Chemistry

  Abstract Oscillating heat pipes (OHPs) represent a promising passive mechanism for the removal or spreading of heat. While simple to construct, the fluid and thermodynamics of these devices are still poorly understood. There is debate over whether the primary heat transfer mechanism is due to sensible heating of the liquid phase or due to latent heat transfer through phase change. To answer this question, an experimental apparatus was constructed to provide time- and space-resolved temperature and heat transfer data across the face of an operating OHP with HFE-7000 as the working fluid. This experiment utilized temperature sensitive paint (TSP) alongside visual recording of the fluid motion in order to determine the relative latent and sensible contribution to the overall heat transfer. The OHP was tested with input powers ranging from 2.6 W to 10.1 W. It found that latent heat transfer was the dominant heat transfer mechanism, accounting for between 65% and 83% of the total heat transferred in all cases.

  PublisherDOI

• Design and development of potassium formate based atmospheric water harvester

  Energy · 2021 · 26 citations

  Senior authorCorresponding
  • Chemistry
  • Environmental chemistry
  • Inorganic chemistry
  PublisherOA PDFDOI

• An investigation of the gravity effects on pool boiling heat transfer via high-fidelity simulations

  International Journal of Heat and Mass Transfer · 2021 · 17 citations

  Senior authorCorresponding
  • Mechanics
  • Materials science
  • Thermodynamics
  PublisherDOI

• Using a modified single-phase model to predict microgravity flow boiling heat transfer in the bubbly flow regime

  Experimental Heat Transfer · 2020-06-24 · 3 citations

  articleSenior authorCorresponding

  It is hypothesized that the heat transfer in microgravity bubbly flow boiling can be computed through a single-flow simulation that accounts for the acceleration of the liquid as bubbles form since the slip velocity in microgravity is negligible. Measurements within the bubbly flow regime were obtained in a 6 mm ID sapphire tube in microgravity using HFE-7000 at four mass fluxes, six heat fluxes, and two subcoolings at atmospheric pressure. Flow visualization was performed and time and space resolved temperature and heat transfer distributions at the wall–fluid interface were measured using a Temperature Sensitive Paint (TSP) applied to the inside of the tube. The local liquid velocity was determined from the movement of small bubbles in the flow. The local, time-averaged heat transfer data were compared to numerical simulations of single-phase flow in a tube whose diameter was varied to match the experimentally obtained local liquid velocity. When the flow within the tube was laminar (low heat flux and mass flux cases), the measured heat transfer agreed well with the numerical results. For cases where the flow became transitional/turbulent and significant bubble coalescence was present, the measured heat transfer was higher, but was bounded by numerical solutions assuming laminar and turbulent flow.

  PublisherDOI

• A formulation for high-fidelity simulations of pool boiling in low gravity

  International Journal of Multiphase Flow · 2019-09-04 · 32 citations

  articleSenior author
  PublisherDOI

• Gravity effects on subcooled flow boiling heat transfer

  International Journal of Heat and Mass Transfer · 2018-09-15 · 56 citations

  articleSenior authorCorresponding
  PublisherDOI

• Experimental investigations of heat transfer mechanisms of a pulsating heat pipe

  Energy Conversion and Management · 2018-12-19 · 131 citations

  article
  PublisherDOI

• ECMWF/MACC와 OPAC자료를 이용한 시너지 에어로솔 모델 산출

  2018-12-01

  article
  Publisher

• Derivation of Synergistic Aerosol Model by Using the ECMWF/MACC and OPAC

  National Remote Sensing Bulletin · 2018-01-01

  article
  PublisherDOI

• Direct numerical simulation of gravity effects on pool boiling heat transfer

  Bulletin of the American Physical Society · 2018-11-19

  articleSenior author
  Publisher

Frequent coauthors

• Yasuyuki Takata

  23 shared

• Khellil Sefiane

  University of Edinburgh

  19 shared

• Masamichi Kohno

  18 shared

• Ken Kiger

  17 shared

• Yutaku Kita

  13 shared

• Rishi Raj

  Sugarcane Breeding Institute

  11 shared

• Yuki Fukatani

  Toshiba (Japan)

  10 shared

• John R. Thome

  École Polytechnique Fédérale de Lausanne

  9 shared

Labs

• Center for Political Communication & Civic LeadershipPI

Education

• Ph.D.

  University of Wisconsin