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SHIP RESISTANCE ANALYSIS WATERJET REMOTELY OPERATED VEHICLE (ROV) USING COMPUTATIONAL FLUID DYNAMICS (CFD) METHOD Kause, Eurico Leonardo; Susanto, Tri
IJMEA Journal Kedokteran Gigi Vol 2 No 1 (2025): March 2025
Publisher : Department of Marine Engineering, Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/ijmea.v2i1.381

Abstract

The propulsion system is a system that supports the performance of high-speed ships. Waterjet ship propulsion systems have long been known and used as propulsion systems for various types of ships, but their widespread application is still subject to their relatively low propulsive efficiency when compared to ship propulsion systems that use propellers, especially during relatively low ship speeds. The usual problem with ROVs using conventional propellers when inspecting in low water in the river is the blockage of river impurities, such as water hyacinths and underwater roots, on the ROV propellers. But there is a limitation to the problem when this waterjet is installed on the ROV should be used on inspections that do not work on the seabed, and the ROV can only be in a hovering position because the waterjet is susceptible to dirt. The purpose of this study was to analyze the ship's resistance of the waterjet remotely operated vehicle (ROV) propulsion system with the results of simulating the effect of the Waterjet ROV design on the total resistance of the Waterjet ROV increased by 5.69 N using the CFD method and the difference in prisoner comparison using the maxsurf method was 1.75%. The thrust analysis of the ROV model with a waterjet propulsion system has a higher thrust increase of 9.21 N when compared to the ROV model with a conventional propeller propulsion system, with a thrust value of 6.94 N. From the analysis of the fluid velocity contour results of the two best ROV models, namely the Waterjet ROV because the placement of the waterjet position on the outer side of the ROV frame so that the placement of the original Propeller inside the inner frame of the ROV is released as a result it tends not to create more turbulence and friction in the water in the middle of the ROV but the surface of the ROV frame on the outside which is added waterjet propulsion components causes higher hydrodynamic pressure.
Hubungan Terpaan Promosi Instagram @officialfdxbeauty dengan Minat Berkunjung ke Event X Beauty Auroro, Gracia Groria; Anggara, Reddy; Susanto, Tri
Jurnal Dinamika Ilmu Komunikasi Vol 11, No 2 (2025)
Publisher : Universitas Prof. Dr. Moestopo (Beragama)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32509/dinamika.v11i2.5711

Abstract

This study aims to analyze the relationship between social media promotion exposure on Instagram @officialfdxbeauty and the interest in visiting the X Beauty Event, using the AIDA (Attention, Interest, Desire, Action) theory. A quantitative approach was used by distributing questionnaires to 100 respondents who are followers of the @officialfdxbeauty account. The results of the Pearson Product Moment correlation test show a significant, strong, and positive relationship between the three sub-variables of promotion exposure, namely intensity, message content, and appeal, with the interest in visiting the X BeautyEvent. The findings indicate that promotion content delivered through the @officialfdxbeauty account, in terms of frequency, clarity of information, and visual and emotional appeal, effectively captures attention, builds interest, generates desire, and encourages actual actions from the audience. Thus, the higher the intensity of exposure to promotional content, the more interesting and relevant the message content, and the stronger the visual and emotional appeal, the higher the interest in attending the X Beauty Event. This confirms that Instagram is an effective medium in supporting digital marketing communication strategies, especially in shaping the interest in visiting an event.
Co-Authors A. Harijono A.A. Ketut Agung Cahyawan W Al Anzhary, Rafdy Alfa Yusuf Retyoadhi Alfianarrochmah, 'Ilma Amalia, Cinta Anggara, Reddy Aulanni'am, Aulanni'am Auroro, Gracia Groria Bagus Hario Setiadji Bambang Purwanggono Budhiharti, Tri Widya Budipriyanto, Adi Carudin, Carudin CH. Yayuk Trisnawati Chasri Nurhayati, Chasri Defriyanti, Wenni Tania Deni, Delista Putri Dr.Ir. Yunianta, DEA Efriandi, Efriandi Erni Sofia Murtini Erryana Martati Ferry Hermawan G.P. Ganda Putra Gunawan, Yosef Halimah, Rainy Shinta Nur Hari Adi Prasetya, Hari Adi Ida Ayu Ulifah Jamil, Syakira Nasywa Juairiyah, Oktaf Kartini Zailanie Kause, Eurico Leonardo Kiagus Ahmad Roni Kurnianingsih, Oktavia Kurniawan, Endro Sigit Legowo, Slamet Jauhari Lubis, Fardiah Oktariani Mahfuda, Anno Manurung, Ayu Oktaviani Muflih Marsuq Muthaher, Andi Muhammad, Fathur Rahman Nayiroh, Luluatu Negara, Adhi Kusuma Ni Made Wartini Ni Made Wartini Harijono Ningtias, Mista Aura Novianti, Mirsa Diah OKY OXCYGENTRI Oom Komalasari Pradana H S, Canggih Gilang Pratama, Ramadhan Widy Pratiwi, Anik Nurul Pratiwi, Kholis Hapsari Purnomo, Galih Putra, Muhammad Hatta Eka Putri, Dita Mentari Raden Mohamad Herdian Bhakti Rahmi, Ardia Tiara Ramdhani, Heru Ratih Kusumawardani Rifdah, Rifdah Roni, Ki agus Ahmad Rumini - Rurini Retnowati SATRIYAS ILYAS Shanahan, Callysta Simon B. Widjanarko Sri Kumalaningsih Sri Maryani Sudarminto Setyo Yuwono Sugeng Rakhmadiono Surya Irawan, Diki Tayo, Yanti Wijaya Adidarma Wijaya, Hanggoro Iskandar Putra Yanti Meldasari Lubis Yanto, Fendi Hary Yenny Sugiarti Yunianta Rurini Retnowati Yusup, Eka Zainal Abidin Zohan Efendi