Droplet freezing phenomenon widely exists in many fields, including aerospace, power production, and cryopreservation, etc. Considering the effects of supercooling, gravity and volume expansion, a theoretical model of droplet freezing is developed. A good agreement is found between the predicted results of freezing front radius and height and experiments for both hydrophilic and hydrophobic surfaces. The developed model also shows good performance in predicting freezing times. The average prediction deviation is 7.63%, and more than 93% simulation results show the deviation within ±15%. Gravity has a more obvious influence on final freezing times with the increase of cold plate temperature, contact angle, and droplet volume. For the droplet freezing process under various contact angles and cold plate temperatures, the fastest average temperature change rates inside water droplet are -2.48 °C/s and -1.72 °C/s, respectively. This study is beneficial for the better understanding of the
joining me is our congress from virginia. congressman, i appreciate you joining us. my pleasure. we had agreement before, do you think this is going to stick? i would put some money on this one. i think trump got bloody in the last go around of the 35 day shutdown that was by the hour becoming more and more unpopular and endangering the american public and airports had to close. that meant a lot to the american people and under lining the gravity effect of this. there is no such thing. i don t think there is any appetite going back there again this week. do you think the president is go i think to accept a border deal that does not give him all the money he wants for this wall? i think he will. i think he s going to contrive with mick mulvaney, his acting chief of staff to fiepd out of pocket money that maybe he can
i think trump got bloody in the last go around of the 35 day shutdown that was by the hour becoming more and more unpopular and endangering the american public and airports had to close. because they were no longer safe. that meant a lot to the american people and under lining the gravity effect of this. there is no such thing. i don t think there is any appetite going back there again this week. do you think the president is go i think to accept a border deal that does not give him all the money he wants for this wall? i think he will. i think he s going to contrive with mick mulvaney, his acting chief of staff to fiepd out of pocket money that maybe he can throw for a wall. i think he understands so long as democrats have anything to say about it, he s not going
bikinis from target. kate was wearing less than sandra bullock did in gravity. kate s sports illustrated shoot seemed to be channelling barbarella. not only did jane fonda to a strip tease but the credits maintained fonda s modesty. last year jimmy fallon was interviewing kate when he mused about a final frontier for her next shoot. space. next year. think about this. there s no gravity. it s incredible. reporter: we know what jimmy and the audience were imagining. how does the absence of gravity effect the position of your bosom? do things float? i think they don t move, really. reporter: america s first female astronaut, sally ride, was once asked if you need to wear a bra in space.