{"id":8646,"date":"2014-08-21T21:58:32","date_gmt":"2014-08-22T01:58:32","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=8646"},"modified":"2014-08-21T21:58:32","modified_gmt":"2014-08-22T01:58:32","slug":"video-oscillating-flame-in-micro-g","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=8646","title":{"rendered":"Video: Oscillating flame in micro-g"},"content":{"rendered":"<p id=\"watch-headline-title\"><span id=\"eow-title\" dir=\"ltr\" title=\"Amazing Flame Comes to Life in Space Station Microgravity Combustion Science\">NASA posts this brief clip showing a flame experiment as part of a Space Station microgravity combustion science study:<\/span><\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/qQQ1OHW1_F4?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>From the caption:<\/p>\n<p>From ignition to pulsating-jellyfish then warp-drive ending! Understanding combustion may lead to more efficient engines and spectacular videos.<\/p>\n<p><strong>Science Objectives<\/strong><br \/>\nThe Flame Extinguishment &#8211; 2 (FLEX-2) experiment is the second experiment to fly on the ISS which uses small droplets of fuel to study the special spherical characteristics of burning fuel droplets in space. The FLEX-2 experiment studies how quickly fuel burns, the conditions required for soot to form, and how mixtures of fuels evaporate before burning. Understanding these processes could lead to the production of a safer spacecraft as well as increased fuel efficiency for engines using liquid fuel on Earth.<\/p>\n<p><strong>Earth Applications<\/strong><br \/>\nWatching fuel burn in a perfect sphere provides a unique view of fire that would be impossible to recreate on Earth. Better knowledge of fire\u2019s dynamics could lead to improved fuels for vehicles and aircraft, including efficient, environmentally friendly mixtures of chemicals that burn well together and produce less soot. Soot results from the incomplete burning of a hydrocarbon, and it is harmful to human and environmental health. The FLEX-2 experiment provides a unique view on soot formation that would be impossible under the influence of Earth\u2019s gravity.<\/p>\n<p><strong>Space Applications<\/strong><br \/>\nThe FLEX-2 experiment measures soot buildup, flame heat and the burning rates of various types of fuels and fuel mixtures. Understanding how fuels burn in microgravity could improve the efficiency of fuel mixtures used for interplanetary missions by reducing cost and weight. It could also lead to improved safety measures for manned spacecraft.<\/p>\n<p><strong>Conditions for this test:<\/strong><br \/>\nTest conducted with 50\/50 fuel mixture of iso-octane and heptane in a standard air environment (21% oxygen and 79% nitrogen at 1 atm). Burn with 3-mm droplet experienced flame oscillations, which appear as a hole in the flame shell that repeatedly opens and closes. These oscillations create asymmetries in the flame, resulting in a force imbalance on the droplet.<\/p>\n<p>For more FLEX-2 information, click on the link below:\u00a0<a class=\"yt-uix-redirect-link\" dir=\"ltr\" style=\"color: #167ac6;\" title=\"http:\/\/www.nasa.gov\/mission_pages\/station\/research\/experiments\/480.html\" href=\"http:\/\/www.nasa.gov\/mission_pages\/station\/research\/experiments\/480.html\" target=\"_blank\" rel=\"nofollow\">www.nasa.gov\/mission_pages\/sta&#8230;<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>NASA posts this brief clip showing a flame experiment as part of a Space Station microgravity combustion science study: From the caption: From ignition to pulsating-jellyfish then warp-drive ending! Understanding combustion may lead to more efficient engines and spectacular videos. Science Objectives The Flame Extinguishment &#8211; 2 (FLEX-2) experiment is the second experiment to fly &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=8646\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Video: Oscillating flame in micro-g<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[95],"tags":[],"class_list":["post-8646","post","type-post","status-publish","format-standard","hentry","category-micro-g-rd"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-2fs","jetpack-related-posts":[{"id":6166,"url":"https:\/\/hobbyspace.com\/Blog\/?p=6166","url_meta":{"origin":8646,"position":0},"title":"Video: Studying Fire In Space (FLEX-2)","author":"TopSpacer","date":"January 22, 2014","format":false,"excerpt":"An interesting discussion of combustion research in microgravity: http:\/\/youtu.be\/CE7Nz78rkfQ Caption: Public Affairs Officer Lori Meggs at Marshall Space Flight Center in Huntsville, Alabama talks about a \"cool\" flames experiment in space. Meggs speaks to Vedha Nayagam, co-investigator for the FLEX-2 combustion experiment. You never want to hear about a fire\u2026","rel":"","context":"In &quot;Living in Space&quot;","block_context":{"text":"Living in Space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=17"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/CE7Nz78rkfQ\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":19695,"url":"https:\/\/hobbyspace.com\/Blog\/?p=19695","url_meta":{"origin":8646,"position":1},"title":"Videos: &#8220;Space to Ground&#8221; ISS report &#8211; Sept.13.2019","author":"TopSpacer","date":"September 13, 2019","format":false,"excerpt":"Here is the latest episode of NASA's weekly Space to Ground report on activities related to the International Space Station: https:\/\/youtu.be\/o1QW8zm3bJY ** Weightless flames:\u00a0 Cleaner combustion on Earth, safer combustion in space | NASA The Flame Design investigation is studying the quantity of soot produced under different flame conditions. The\u2026","rel":"","context":"In &quot;In Space Infrastructure&quot;","block_context":{"text":"In Space Infrastructure","link":"https:\/\/hobbyspace.com\/Blog\/?cat=15"},"img":{"alt_text":"Space Flame","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2019\/09\/space-flame1.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3364,"url":"https:\/\/hobbyspace.com\/Blog\/?p=3364","url_meta":{"origin":8646,"position":2},"title":"Students study fire in microgravity on parabolic flight","author":"TopSpacer","date":"July 12, 2013","format":false,"excerpt":"Students at Univ. of California at San Diego carried out experiments on combustion and flame in weightlessness while riding on a NASA plane flying parabolic trajectories: Weightless Flames: How Fires Burn in Space | Fire in Zero-G - Space.com MAE UCSD Team accepted into NASA's Microgravity University program - UCSD\u2026","rel":"","context":"In &quot;Education&quot;","block_context":{"text":"Education","link":"https:\/\/hobbyspace.com\/Blog\/?cat=22"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/OXRF95iuLvg\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":24153,"url":"https:\/\/hobbyspace.com\/Blog\/?p=24153","url_meta":{"origin":8646,"position":3},"title":"Videos: &#8220;Space to Ground&#8221; + Other ISS reports &#8211; July.16.2021","author":"TopSpacer","date":"July 16, 2021","format":false,"excerpt":"Here is the latest episode in NASA's Space to Ground weekly report on activities related to the International Space Station: https:\/\/youtu.be\/a4YPLFJCh1U ** Space is Spicier: Peppers Growing on Station - NASA's Kennedy Space Center On July 12, NASA astronaut Shane Kimbrough on the International Space Station added water to NASA\u2019s\u2026","rel":"","context":"In &quot;In Space Infrastructure&quot;","block_context":{"text":"In Space Infrastructure","link":"https:\/\/hobbyspace.com\/Blog\/?cat=15"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2019\/04\/bigelow-xbase-_20160808-001-300x232.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":6353,"url":"https:\/\/hobbyspace.com\/Blog\/?p=6353","url_meta":{"origin":8646,"position":4},"title":"Video: A test of diet to prevent bone loss in micro-g","author":"TopSpacer","date":"February 4, 2014","format":false,"excerpt":"This video presents an interesting discussion of a test of whether nutrition can affect the bone density of crew members of the ISS: Space Station Live commentator Pat Ryan conducts an interview with Dr. Scott M. 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