Date of download: 10/31/2017 Copyright © ASME. All rights reserved. From: Effects of Droplet Diameter and Fluid Properties on the Leidenfrost Temperature of Polished and Micro/Nanostructured Surfaces J. Heat Transfer. 2016;138(5):051501-051501-7. doi:10.1115/1.4032291 Figure Legend: FLSP setup

Date of download: 10/31/2017 Copyright © ASME. All rights reserved. From: Effects of Droplet Diameter and Fluid Properties on the Leidenfrost Temperature of Polished and Micro/Nanostructured Surfaces J. Heat Transfer. 2016;138(5):051501-051501-7. doi:10.1115/1.4032291 Figure Legend: (a) Square flat top beam profile of Femtosecond laser pulses. (b) Laser raster pattern. X and Y were approximately 1.5 in. while d was 15 μm.

Date of download: 10/31/2017 Copyright © ASME. All rights reserved. From: Effects of Droplet Diameter and Fluid Properties on the Leidenfrost Temperature of Polished and Micro/Nanostructured Surfaces J. Heat Transfer. 2016;138(5):051501-051501-7. doi:10.1115/1.4032291 Figure Legend: LFP experimental setup. A precision microdropper was used in conjunction with a temperature controller to evaporate droplets. Droplets were recorded on a high-definition camera and droplet lifetime was extracted from the video.

Date of download: 10/31/2017 Copyright © ASME. All rights reserved. From: Effects of Droplet Diameter and Fluid Properties on the Leidenfrost Temperature of Polished and Micro/Nanostructured Surfaces J. Heat Transfer. 2016;138(5):051501-051501-7. doi:10.1115/1.4032291 Figure Legend: SEM images (top) and 3D topology scans (bottom) of (a) ASG-Mounds and (b) mirror polished test samples. SEM images taken at 600 × magnification—scale bars are 100 μm. It should be noted that the colors do not correspond on the topology scans. For the ASG-Mounds red represents a height of 30 μm, while the same color represents a height of 0.7 μm on the polished sample.

Date of download: 10/31/2017 Copyright © ASME. All rights reserved. From: Effects of Droplet Diameter and Fluid Properties on the Leidenfrost Temperature of Polished and Micro/Nanostructured Surfaces J. Heat Transfer. 2016;138(5):051501-051501-7. doi:10.1115/1.4032291 Figure Legend: LFP results using DI water droplets: (a) Droplet lifetime curves of water droplets on polished and FLSP stainless steel test surfaces. (b) Enlarged view of lifetime curve for 1.5 mm droplets on ASG-Mounds. (c) Leidenfrost temperature as a function of droplet diameter shows substantially different rates of change for the mirror-polished and ASG-Mounds samples.

Date of download: 10/31/2017 Copyright © ASME. All rights reserved. From: Effects of Droplet Diameter and Fluid Properties on the Leidenfrost Temperature of Polished and Micro/Nanostructured Surfaces J. Heat Transfer. 2016;138(5):051501-051501-7. doi:10.1115/1.4032291 Figure Legend: Schematic representation of a droplet on a hot surface transitioning to film boiling. (1) Nucleate boiling, (2) coalescence of vapor pockets typically occurs during transition boiling, (3) unstable vapor film just below the Leidenfrost Temperature, and (4) film boiling.

Date of download: 10/31/2017 Copyright © ASME. All rights reserved. From: Effects of Droplet Diameter and Fluid Properties on the Leidenfrost Temperature of Polished and Micro/Nanostructured Surfaces J. Heat Transfer. 2016;138(5):051501-051501-7. doi:10.1115/1.4032291 Figure Legend: (a) Droplet lifetime curves of HFE 7300DL on polished and FLSP stainless steel test surfaces. (b) Leidenfrost temperature as a function of droplet diameter shows that the LFP is the same for both the mirror-polished and ASG-Mounds samples. Only minimal shifts in the LFP were observed over the range of droplet sizes.

Date of download: 10/31/2017 Copyright © ASME. All rights reserved. From: Effects of Droplet Diameter and Fluid Properties on the Leidenfrost Temperature of Polished and Micro/Nanostructured Surfaces J. Heat Transfer. 2016;138(5):051501-051501-7. doi:10.1115/1.4032291 Figure Legend: Left: Leidenfrost temperature as a function of droplet diameter for both test fluids on the mirror polished sample. Right: Contact angle images for both fluids on the mirror polished surface.