Browsing NTNU Open by Author "Park, Il Woong"
Now showing items 1-7 of 7
-
Can flow oscillations during flow boiling deteriorate the heat transfer coefficient?
Park, Il Woong; Ryu, Jeongrim; Fernandino, Maria; Dorao, Carlos Alberto (Journal article; Peer reviewed, 2018)Two-phase flow instabilities have been identified as one of the impediments for achieving high heat flux in boiling systems due to their potential heat transfer deterioration. However, most of the fundamental characteristics ... -
The Criterion of the Cassie–Baxter and Wenzel Wetting Modes and the Effect of Elastic Substrates on It
Park, Il Woong; Ribe, Jonas Myren; Fernandino, Maria; Dorao, Carlos Alberto (Peer reviewed; Journal article, 2023)Controlling the wettability using microstructures has been studied because of many applications. In particular, bio-mimetic microstructures modeled after the self-cleaning properties of the lotus leaf have been extensively ... -
Experimental study on the characteristics of pressure drop oscillations and their interaction with short-period oscillation in a horizontal tube
Park, Il Woong; Fernandino, Maria; Dorao, Carlos Alberto (Journal article; Peer reviewed, 2018)Long-period oscillations (pressure drop oscillations) and short-period oscillations (superimposed density wave oscillations) have been observed in many studies. However, under which condition the long-period oscillations ... -
Heat transfer and pressure drop characteristics of the silicone-based plate heat exchanger
Muszynski, Tomasz; Andrzejczyk, Rafal; Park, Il Woong; Dorao, Carlos Alberto (Journal article; Peer reviewed, 2019)The paper presents an experimental investigation of a silicone based heat exchanger, with passive heat transfer intensification by means of surface enhancement. The main objective of this paper was to experimentally ... -
On the occurrence of superimposed density wave oscillations on pressure drop oscillations and the influence of a compressible volume
Park, Il Woong; Fernandino, Maria; Dorao, Carlos Alberto (Journal article; Peer reviewed, 2018)Although two-phase flow instabilities are attributed to be one of the impediments for achieving high heat flux in boiling systems, most of their fundamental characteristics remain uncharted. In particular, pressure drop ... -
Two-phase Flow Instabilities during Flow Boiling and Control of Wettability by Micro-structured Surfaces
Park, Il Woong (Doctoral theses at NTNU;2018:245, Doctoral thesis, 2018)Boiling heat transfer is of relevance in a variety of applications in power and process industries. In spite of the vast research performed in the last decades, fundamental questions about mechanisms related to the boiling ... -
Wetting State Transitions over Hierarchical Conical Microstructures
Park, Il Woong; Fernandino, Maria; Dorao, Carlos Alberto (Journal article; Peer reviewed, 2018)Advancing in a better understanding of the physics of wetting requires to be able to develop surfaces with well‐controlled roughness by controlling the microstructure morphology. In this study, patterned truncated cones ...