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All Journal Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat METAL : Jurnal Sistem Mekanik dan Termal
Jalaluddin Jalaluddin
Universitas Hasanuddin
Agriculture, Biological Sciences & Forestry Automotive Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Kajian Aerodinamika Pada Model Kendaraan dengan Penerapan Kontrol Aktif Suction Rustan Tarakka; Nasaruddin Salam; Jalaluddin Jalaluddin; Wawan Rauf; Muhammad Ihsan
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 1 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (673.3 KB) | DOI: 10.25077/metal.5.1.38-43.2021

Abstract

As the air flow reaches the rear part of the vehicle the flow will undergo separation generated by friction and fluid viscosity, and creating wake, considerably large turbulent area with low pressure at the rear of the vehicle which results in pressure drag which can reduce vehicle performance. The research was carried out with a computational and experimental approach. The test model used in this study is a model of a family van model which is a modification of the Ahmed body model. The rear part of the vehicle model is equipped with an active control feature in the form of a suction with a slant angle (α) of 35°. The upstream speed and suction speed are 11.1 m/s and 0.5 m/s, respectively. The results obtained indicate that the application of active suction control is able to reduce wake formation and delay flow separation compared to the uncontrolled model, and is able to increase the minimum pressure coefficient on the rear wall of the vehicle model with an increase of 41.49%, and is able to reduce the drag coefficient by 11.0260% for the approach. computation and 11.0080% for the experimental approach.
Pemanfaatan Teknologi Pratanak dalam Pemberdayaan Petani dan Pedagang Beras di Kabupaten Takalar, Sulawesi Selatan Andi Nur Faidah Rahman; Jalaluddin Jalaluddin; Mulyati Muhammad Tahir; Jumriah Langkong
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 11 No. 3 (2025): Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.11.3.526-533

Abstract

Takalar Regency is a region in South Sulawesi Province where rice is the leading agricultural commodity, surpassing other crops such as corn, tubers, and legumes. Along with the rising incidence of degenerative diseases particularly diabetes mellitus (DM), which is suspected to be linked to excessive consumption of high glycemic rice public awareness of choosing healthier rice options has increased. One of the innovations currently being developed to address this issue is parboiling technology, which can reduce the glycemic index (GI) of rice. In addition to its health benefits, parboiled rice also holds high economic value and has the potential to empower local rice farmers and traders. This activity aimed to educate the community on the benefits of consuming parboiled rice and to provide hands-on training in its production. The method used involved both counseling and practical training sessions, conducted in Tala Village, Sombalabella Subdistrict, Pattalassang District, Takalar Regency. The participants consisted of 40 women who are farmers and rice traders, economically unproductive at the time. The program was delivered in two sessions: a material presentation and practical training. Based on the participants’ questionnaire responses, knowledge about parboiled rice increased significantly from only 47% awareness before the activity to 100% afterward. In terms of skills, none of the participants initially knew how to make parboiled rice, but after the training, 90% were able to do it independently. The conclusion of this activity is that the counseling and training on the utilization of parboiling technology can broaden the community's knowledge and enhance their skills in producing parboiled rice.
Co-Authors Andi Nur Faidah Rahman Jumriah Langkong Muhammad Ihsan Mulyati Muhammad Tahir Nasaruddin Salam Rauf, Wawan Rustan Tarakka